diff --git a/Exception/BadUserRoleException.php b/Exception/BadUserRoleException.php
index a94639d6..8757511b 100644
--- a/Exception/BadUserRoleException.php
+++ b/Exception/BadUserRoleException.php
@@ -12,7 +12,7 @@
 namespace WBW\Bundle\BootstrapBundle\Exception;
 
 use Symfony\Component\Security\Core\User\UserInterface;
-use WBW\Library\Core\IO\HTTPInterface;
+use WBW\Library\Core\Helper\IO\HTTPInterface;
 
 /**
  * Bad user role exception.
diff --git a/Form/Renderer/FormRenderer.php b/Form/Renderer/FormRenderer.php
index dfd1072c..c8ee66a5 100644
--- a/Form/Renderer/FormRenderer.php
+++ b/Form/Renderer/FormRenderer.php
@@ -12,8 +12,8 @@
 namespace WBW\Bundle\BootstrapBundle\Form\Renderer;
 
 use Symfony\Component\Translation\TranslatorInterface;
-use WBW\Library\Core\Algorithm\Sorting\AlphabeticalTreeSort;
-use WBW\Library\Core\Algorithm\Sorting\AlphabeticalTreeSortInterface;
+use WBW\Library\Core\Helper\Sorting\AlphabeticalTreeNodeHelper;
+use WBW\Library\Core\Model\Sorting\AlphabeticalTreeNodeInterface;
 
 /**
  * Form renderer.
@@ -47,8 +47,8 @@ public static function render($option, TranslatorInterface $translator = null) {
             $output = "FormRendererInterface not implemented by this object";
         }
 
-        if (true === ($option instanceof AlphabeticalTreeSortInterface)) {
-            $multiplier = AlphabeticalTreeSort::getLevel($option);
+        if (true === ($option instanceof AlphabeticalTreeNodeInterface)) {
+            $multiplier = AlphabeticalTreeNodeHelper::getLevel($option);
             $nbsp       = html_entity_decode(" ");
             $symbol     = html_entity_decode(0 === $multiplier ? "─" : "└");
             $output     = implode("", [str_repeat($nbsp, $multiplier * 3), $symbol, $nbsp, $output]);
diff --git a/Navigation/NavigationItem.php b/Navigation/NavigationItem.php
index db861f65..93484613 100644
--- a/Navigation/NavigationItem.php
+++ b/Navigation/NavigationItem.php
@@ -12,7 +12,7 @@
 namespace WBW\Bundle\BootstrapBundle\Navigation;
 
 use WBW\Library\Core\Node\AbstractNode;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Navigation item.
@@ -100,9 +100,9 @@ public function toArray() {
         // Initialize the output.
         $output = [];
 
-        ArrayUtility::set($output, "href", $this->href, [null]);
-        ArrayUtility::set($output, "icon", $this->icon, [null]);
-        ArrayUtility::set($output, "span", $this->getId(), [null]);
+        ArrayHelper::set($output, "href", $this->href, [null]);
+        ArrayHelper::set($output, "icon", $this->icon, [null]);
+        ArrayHelper::set($output, "span", $this->getId(), [null]);
 
         // Check the nodes.
         if (0 < $this->size()) {
diff --git a/Tests/Form/Renderer/FormRendererTest.php b/Tests/Form/Renderer/FormRendererTest.php
index 708d08ff..a25a6e06 100644
--- a/Tests/Form/Renderer/FormRendererTest.php
+++ b/Tests/Form/Renderer/FormRendererTest.php
@@ -15,7 +15,7 @@
 use WBW\Bundle\BootstrapBundle\Form\Renderer\FormRenderer;
 use WBW\Bundle\BootstrapBundle\Form\Renderer\TranslatedChoiceRendererInterface;
 use WBW\Bundle\BootstrapBundle\Tests\Cases\AbstractBootstrapFrameworkTestCase;
-use WBW\Library\Core\Algorithm\Sorting\AlphabeticalTreeSortInterface;
+use WBW\Library\Core\Model\Sorting\AlphabeticalTreeNodeInterface;
 
 /**
  * Form renderer test.
@@ -41,13 +41,13 @@ protected function setUp() {
         // Set the mocks.
         $this->args = [
             null,
-            $this->getMockBuilder(AlphabeticalTreeSortInterface::class)->getMock(),
+            $this->getMockBuilder(AlphabeticalTreeNodeInterface::class)->getMock(),
             $this->getMockBuilder(ChoiceRendererInterface::class)->getMock(),
             $this->getMockBuilder(TranslatedChoiceRendererInterface::class)->getMock(),
             $this,
         ];
 
-        $this->args[1]->expects($this->any())->method("getAlphabeticalTreeSortParent")->willReturn(null);
+        $this->args[1]->expects($this->any())->method("getAlphabeticalTreeNodeParent")->willReturn(null);
         $this->args[2]->expects($this->any())->method("getChoiceLabel")->willReturn("choiceLabel");
         $this->args[3]->expects($this->any())->method("getTranslatedChoiceLabel")->willReturn("translatedChoiceLabel");
     }
diff --git a/Tests/Twig/Extension/CSS/ImageTwigExtensionTest.php b/Tests/Twig/Extension/CSS/ImageTwigExtensionTest.php
index d2641518..6b1d060a 100644
--- a/Tests/Twig/Extension/CSS/ImageTwigExtensionTest.php
+++ b/Tests/Twig/Extension/CSS/ImageTwigExtensionTest.php
@@ -15,7 +15,7 @@
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\Tests\Cases\AbstractBootstrapFrameworkTestCase;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\CSS\ImageTwigExtension;
-use WBW\Library\Core\Utility\IO\FileUtility;
+use WBW\Library\Core\Helper\IO\FileHelper;
 
 /**
  * Image Twig extension.
@@ -55,7 +55,7 @@ public function testBootstrapImageBase64Function() {
 
         $obj = new ImageTwigExtension();
 
-        $ref = FileUtility::getContents(getcwd() . "/Tests/Twig/Extension/CSS/ImageTwigExtensionTest.txt");
+        $ref = FileHelper::getContents(getcwd() . "/Tests/Twig/Extension/CSS/ImageTwigExtensionTest.txt");
         $src = getcwd() . "/Resources/doc/images/bootstrap-stack_1024x0860.png";
 
         $arg0 = [];
diff --git a/Twig/Extension/AbstractBootstrapTwigExtension.php b/Twig/Extension/AbstractBootstrapTwigExtension.php
index 949767af..022aa4a6 100644
--- a/Twig/Extension/AbstractBootstrapTwigExtension.php
+++ b/Twig/Extension/AbstractBootstrapTwigExtension.php
@@ -13,7 +13,7 @@
 
 use Twig_Extension;
 use WBW\Bundle\BootstrapBundle\Navigation\NavigationInterface;
-use WBW\Library\Core\Utility\Argument\StringUtility;
+use WBW\Library\Core\Helper\Argument\StringHelper;
 
 /**
  * Abstract Bootstrap Twig extension.
@@ -59,7 +59,7 @@ public static function bootstrapHTMLElement($element, $content, array $attrs = [
         $template = "<%element%%attributes%>%innerHTML%</%element%>";
 
         // Initialize the attributes.
-        $attributes = trim(StringUtility::parseArray($attrs));
+        $attributes = trim(StringHelper::parseArray($attrs));
         if (0 < strlen($attributes)) {
             $attributes = " " . $attributes;
         }
@@ -68,7 +68,7 @@ public static function bootstrapHTMLElement($element, $content, array $attrs = [
         $innerHTML = null !== $content ? trim($content, " ") : "";
 
         // Return the HTML.
-        return StringUtility::replace($template, ["%element%", "%attributes%", "%innerHTML%"], [trim($element), $attributes, $innerHTML]);
+        return StringHelper::replace($template, ["%element%", "%attributes%", "%innerHTML%"], [trim($element), $attributes, $innerHTML]);
     }
 
 }
diff --git a/Twig/Extension/CSS/AbstractImageTwigExtension.php b/Twig/Extension/CSS/AbstractImageTwigExtension.php
index 1ff2e52f..f7bf8387 100644
--- a/Twig/Extension/CSS/AbstractImageTwigExtension.php
+++ b/Twig/Extension/CSS/AbstractImageTwigExtension.php
@@ -12,7 +12,7 @@
 namespace WBW\Bundle\BootstrapBundle\Twig\Extension\CSS;
 
 use WBW\Bundle\BootstrapBundle\Twig\Extension\AbstractBootstrapTwigExtension;
-use WBW\Library\Core\Utility\Argument\StringUtility;
+use WBW\Library\Core\Helper\Argument\StringHelper;
 
 /**
  * Abstract image Twig extension.
@@ -57,7 +57,7 @@ protected function bootstrapImage($src, $alt, $width, $height, $class, $usemap)
         $attributes["usemap"] = $usemap;
 
         // Return the HTML.
-        return StringUtility::replace($template, ["%attributes%"], [StringUtility::parseArray($attributes)]);
+        return StringHelper::replace($template, ["%attributes%"], [StringHelper::parseArray($attributes)]);
     }
 
 }
diff --git a/Twig/Extension/CSS/ButtonTwigExtension.php b/Twig/Extension/CSS/ButtonTwigExtension.php
index 8bcead6d..ddb2fff0 100644
--- a/Twig/Extension/CSS/ButtonTwigExtension.php
+++ b/Twig/Extension/CSS/ButtonTwigExtension.php
@@ -14,8 +14,8 @@
 use Twig_SimpleFilter;
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\BootstrapBundle;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
-use WBW\Library\Core\Utility\Argument\StringUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
+use WBW\Library\Core\Helper\Argument\StringHelper;
 
 /**
  * Button Twig extension.
@@ -47,7 +47,7 @@ public function __construct() {
      * @return string Returns the Bootstrap button "Danger".
      */
     public function bootstrapButtonDangerFunction(array $args = []) {
-        return $this->bootstrapButton(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "title"), ArrayUtility::get($args, "size", false), ArrayUtility::get($args, "block", false), ArrayUtility::get($args, "active", false), ArrayUtility::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_DANGER, ArrayUtility::get($args, "icon"));
+        return $this->bootstrapButton(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "title"), ArrayHelper::get($args, "size", false), ArrayHelper::get($args, "block", false), ArrayHelper::get($args, "active", false), ArrayHelper::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_DANGER, ArrayHelper::get($args, "icon"));
     }
 
     /**
@@ -57,7 +57,7 @@ public function bootstrapButtonDangerFunction(array $args = []) {
      * @return string Returns the Bootstrap button "Default".
      */
     public function bootstrapButtonDefaultFunction(array $args = []) {
-        return $this->bootstrapButton(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "title"), ArrayUtility::get($args, "size", false), ArrayUtility::get($args, "block", false), ArrayUtility::get($args, "active", false), ArrayUtility::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_DEFAULT, ArrayUtility::get($args, "icon"));
+        return $this->bootstrapButton(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "title"), ArrayHelper::get($args, "size", false), ArrayHelper::get($args, "block", false), ArrayHelper::get($args, "active", false), ArrayHelper::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_DEFAULT, ArrayHelper::get($args, "icon"));
     }
 
     /**
@@ -67,7 +67,7 @@ public function bootstrapButtonDefaultFunction(array $args = []) {
      * @return string Returns the Bootstrap button "Info".
      */
     public function bootstrapButtonInfoFunction(array $args = []) {
-        return $this->bootstrapButton(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "title"), ArrayUtility::get($args, "size", false), ArrayUtility::get($args, "block", false), ArrayUtility::get($args, "active", false), ArrayUtility::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_INFO, ArrayUtility::get($args, "icon"));
+        return $this->bootstrapButton(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "title"), ArrayHelper::get($args, "size", false), ArrayHelper::get($args, "block", false), ArrayHelper::get($args, "active", false), ArrayHelper::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_INFO, ArrayHelper::get($args, "icon"));
     }
 
     /**
@@ -81,7 +81,7 @@ public function bootstrapButtonInfoFunction(array $args = []) {
     public function bootstrapButtonLinkFilter($button, $href = self::DEFAULT_HREF, $target = null) {
         $searches = ["<button", "type=\"button\"", "</button>"];
         $replaces = ["<a", "href=\"" . $href . "\"" . (null !== $target ? " target=\"" . $target . "\"" : ""), "</a>"];
-        return StringUtility::replace($button, $searches, $replaces);
+        return StringHelper::replace($button, $searches, $replaces);
     }
 
     /**
@@ -91,7 +91,7 @@ public function bootstrapButtonLinkFilter($button, $href = self::DEFAULT_HREF, $
      * @return string Returns the Bootstrap button "Link".
      */
     public function bootstrapButtonLinkFunction(array $args = []) {
-        return $this->bootstrapButton(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "title"), ArrayUtility::get($args, "size", false), ArrayUtility::get($args, "block", false), ArrayUtility::get($args, "active", false), ArrayUtility::get($args, "disable", false), "btn-link", ArrayUtility::get($args, "icon"));
+        return $this->bootstrapButton(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "title"), ArrayHelper::get($args, "size", false), ArrayHelper::get($args, "block", false), ArrayHelper::get($args, "active", false), ArrayHelper::get($args, "disable", false), "btn-link", ArrayHelper::get($args, "icon"));
     }
 
     /**
@@ -101,7 +101,7 @@ public function bootstrapButtonLinkFunction(array $args = []) {
      * @return string Returns the Bootstrap button "Primary".
      */
     public function bootstrapButtonPrimaryFunction(array $args = []) {
-        return $this->bootstrapButton(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "title"), ArrayUtility::get($args, "size", false), ArrayUtility::get($args, "block", false), ArrayUtility::get($args, "active", false), ArrayUtility::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_PRIMARY, ArrayUtility::get($args, "icon"));
+        return $this->bootstrapButton(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "title"), ArrayHelper::get($args, "size", false), ArrayHelper::get($args, "block", false), ArrayHelper::get($args, "active", false), ArrayHelper::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_PRIMARY, ArrayHelper::get($args, "icon"));
     }
 
     /**
@@ -111,7 +111,7 @@ public function bootstrapButtonPrimaryFunction(array $args = []) {
      * @return string Returns the Bootstrap button transformed into a submit button.
      */
     public function bootstrapButtonSubmitFilter($bootstrapButton) {
-        return StringUtility::replace($bootstrapButton, ["type=\"button\""], ["type=\"submit\""]);
+        return StringHelper::replace($bootstrapButton, ["type=\"button\""], ["type=\"submit\""]);
     }
 
     /**
@@ -121,7 +121,7 @@ public function bootstrapButtonSubmitFilter($bootstrapButton) {
      * @return string Returns the Bootstrap button "Success".
      */
     public function bootstrapButtonSuccessFunction(array $args = []) {
-        return $this->bootstrapButton(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "title"), ArrayUtility::get($args, "size", false), ArrayUtility::get($args, "block", false), ArrayUtility::get($args, "active", false), ArrayUtility::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_SUCCESS, ArrayUtility::get($args, "icon"));
+        return $this->bootstrapButton(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "title"), ArrayHelper::get($args, "size", false), ArrayHelper::get($args, "block", false), ArrayHelper::get($args, "active", false), ArrayHelper::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_SUCCESS, ArrayHelper::get($args, "icon"));
     }
 
     /**
@@ -131,7 +131,7 @@ public function bootstrapButtonSuccessFunction(array $args = []) {
      * @return string Returns the Bootstrap button "Warning".
      */
     public function bootstrapButtonWarningFunction(array $args = []) {
-        return $this->bootstrapButton(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "title"), ArrayUtility::get($args, "size", false), ArrayUtility::get($args, "block", false), ArrayUtility::get($args, "active", false), ArrayUtility::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_WARNING, ArrayUtility::get($args, "icon"));
+        return $this->bootstrapButton(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "title"), ArrayHelper::get($args, "size", false), ArrayHelper::get($args, "block", false), ArrayHelper::get($args, "active", false), ArrayHelper::get($args, "disable", false), "btn-" . BootstrapBundle::BOOTSTRAP_WARNING, ArrayHelper::get($args, "icon"));
     }
 
     /**
diff --git a/Twig/Extension/CSS/CodeTwigExtension.php b/Twig/Extension/CSS/CodeTwigExtension.php
index 3940d948..2ce66541 100644
--- a/Twig/Extension/CSS/CodeTwigExtension.php
+++ b/Twig/Extension/CSS/CodeTwigExtension.php
@@ -12,7 +12,7 @@
 namespace WBW\Bundle\BootstrapBundle\Twig\Extension\CSS;
 
 use Twig_SimpleFunction;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Code Twig extension.
@@ -44,7 +44,7 @@ public function __construct() {
      * @return string Returns the Bootstrap basic block.
      */
     public function bootstrapBasicBlockFunction(array $args = []) {
-        return $this->bootstrapBasicBlock(ArrayUtility::get($args, "content"));
+        return $this->bootstrapBasicBlock(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -54,7 +54,7 @@ public function bootstrapBasicBlockFunction(array $args = []) {
      * @return string Returns the Bootstrap inline.
      */
     public function bootstrapInlineFunction(array $args = []) {
-        return $this->bootstrapInline(ArrayUtility::get($args, "content"));
+        return $this->bootstrapInline(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -64,7 +64,7 @@ public function bootstrapInlineFunction(array $args = []) {
      * @return string Returns the Bootstrap smaple output.
      */
     public function bootstrapSampleOutputFunction(array $args = []) {
-        return $this->bootstrapSampleOutput(ArrayUtility::get($args, "content"));
+        return $this->bootstrapSampleOutput(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -74,7 +74,7 @@ public function bootstrapSampleOutputFunction(array $args = []) {
      * @return string Returns the Bootstrap user input.
      */
     public function bootstrapUserInputFunction(array $args = []) {
-        return $this->bootstrapUserInput(ArrayUtility::get($args, "content"));
+        return $this->bootstrapUserInput(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -84,7 +84,7 @@ public function bootstrapUserInputFunction(array $args = []) {
      * @return string Returns the Bootstrap variable.
      */
     public function bootstrapVariableFunction(array $args = []) {
-        return $this->bootstrapVariable(ArrayUtility::get($args, "content"));
+        return $this->bootstrapVariable(ArrayHelper::get($args, "content"));
     }
 
     /**
diff --git a/Twig/Extension/CSS/GridTwigExtension.php b/Twig/Extension/CSS/GridTwigExtension.php
index 42d153e0..27d12bad 100644
--- a/Twig/Extension/CSS/GridTwigExtension.php
+++ b/Twig/Extension/CSS/GridTwigExtension.php
@@ -12,7 +12,7 @@
 namespace WBW\Bundle\BootstrapBundle\Twig\Extension\CSS;
 
 use Twig_SimpleFunction;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Grid Twig extension.
@@ -64,7 +64,7 @@ public function bootstrapGridFunction(array $args = []) {
      * @return string Returns the Bootstrap grid with offset.
      */
     public function bootstrapGridOffsetFunction(array $args = []) {
-        return $this->bootstrapGrid(ArrayUtility::get($args, "lgOffset"), ArrayUtility::get($args, "mdOffset"), ArrayUtility::get($args, "smOffset"), ArrayUtility::get($args, "xsOffset"), ArrayUtility::get($args, "recopyOffset", false), "offset-");
+        return $this->bootstrapGrid(ArrayHelper::get($args, "lgOffset"), ArrayHelper::get($args, "mdOffset"), ArrayHelper::get($args, "smOffset"), ArrayHelper::get($args, "xsOffset"), ArrayHelper::get($args, "recopyOffset", false), "offset-");
     }
 
     /**
@@ -74,7 +74,7 @@ public function bootstrapGridOffsetFunction(array $args = []) {
      * @return string Returns the Bootstrap grid with pull.
      */
     public function bootstrapGridPullFunction(array $args = []) {
-        return $this->bootstrapGrid(ArrayUtility::get($args, "lgPull"), ArrayUtility::get($args, "mdPull"), ArrayUtility::get($args, "smPull"), ArrayUtility::get($args, "xsPull"), ArrayUtility::get($args, "recopyPull", false), "pull-");
+        return $this->bootstrapGrid(ArrayHelper::get($args, "lgPull"), ArrayHelper::get($args, "mdPull"), ArrayHelper::get($args, "smPull"), ArrayHelper::get($args, "xsPull"), ArrayHelper::get($args, "recopyPull", false), "pull-");
     }
 
     /**
@@ -84,7 +84,7 @@ public function bootstrapGridPullFunction(array $args = []) {
      * @return string Returns the Bootstrap grid with push.
      */
     public function bootstrapGridPushFunction(array $args = []) {
-        return $this->bootstrapGrid(ArrayUtility::get($args, "lgPush"), ArrayUtility::get($args, "mdPush"), ArrayUtility::get($args, "smPush"), ArrayUtility::get($args, "xsPush"), ArrayUtility::get($args, "recopyPush", false), "push-");
+        return $this->bootstrapGrid(ArrayHelper::get($args, "lgPush"), ArrayHelper::get($args, "mdPush"), ArrayHelper::get($args, "smPush"), ArrayHelper::get($args, "xsPush"), ArrayHelper::get($args, "recopyPush", false), "push-");
     }
 
     /**
@@ -94,7 +94,7 @@ public function bootstrapGridPushFunction(array $args = []) {
      * @return string Returns the Bootstrap grid with stacked-to-horizontal.
      */
     public function bootstrapGridStackedFunction(array $args = []) {
-        return $this->bootstrapGrid(ArrayUtility::get($args, "lg"), ArrayUtility::get($args, "md"), ArrayUtility::get($args, "sm"), ArrayUtility::get($args, "xs"), ArrayUtility::get($args, "recopy", false), "");
+        return $this->bootstrapGrid(ArrayHelper::get($args, "lg"), ArrayHelper::get($args, "md"), ArrayHelper::get($args, "sm"), ArrayHelper::get($args, "xs"), ArrayHelper::get($args, "recopy", false), "");
     }
 
     /**
diff --git a/Twig/Extension/CSS/ImageTwigExtension.php b/Twig/Extension/CSS/ImageTwigExtension.php
index 27fbe5dd..723bb953 100644
--- a/Twig/Extension/CSS/ImageTwigExtension.php
+++ b/Twig/Extension/CSS/ImageTwigExtension.php
@@ -15,7 +15,7 @@
 use Symfony\Component\HttpKernel\Kernel;
 use Symfony\Component\Serializer\Normalizer\DataUriNormalizer;
 use Twig_SimpleFunction;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Image Twig extension.
@@ -82,10 +82,10 @@ private function base64Encode($uri) {
     public function bootstrapImageBase64Function(array $args = []) {
 
         // Initialize the src.
-        $src = $this->base64Encode(ArrayUtility::get($args, "src"));
+        $src = $this->base64Encode(ArrayHelper::get($args, "src"));
 
         // Return the Bootstrap image.
-        return $this->bootstrapImage($src, ArrayUtility::get($args, "alt"), ArrayUtility::get($args, "width"), ArrayUtility::get($args, "height"), ArrayUtility::get($args, "class"), ArrayUtility::get($args, "usemap"));
+        return $this->bootstrapImage($src, ArrayHelper::get($args, "alt"), ArrayHelper::get($args, "width"), ArrayHelper::get($args, "height"), ArrayHelper::get($args, "class"), ArrayHelper::get($args, "usemap"));
     }
 
     /**
diff --git a/Twig/Extension/CSS/TypographyTwigExtension.php b/Twig/Extension/CSS/TypographyTwigExtension.php
index a0d17e83..a331f54b 100644
--- a/Twig/Extension/CSS/TypographyTwigExtension.php
+++ b/Twig/Extension/CSS/TypographyTwigExtension.php
@@ -12,7 +12,7 @@
 namespace WBW\Bundle\BootstrapBundle\Twig\Extension\CSS;
 
 use Twig_SimpleFunction;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Typography Twig extension.
@@ -44,7 +44,7 @@ public function __construct() {
      * @return string Returns the Bootstrap bold text.
      */
     public function bootstrapBoldFunction(array $args = []) {
-        return $this->bootstrapBold(ArrayUtility::get($args, "content"));
+        return $this->bootstrapBold(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -54,7 +54,7 @@ public function bootstrapBoldFunction(array $args = []) {
      * @return string Returns the Bootstrap deleted text.
      */
     public function bootstrapDeletedFunction(array $args = []) {
-        return $this->bootstrapDeleted(ArrayUtility::get($args, "content"));
+        return $this->bootstrapDeleted(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -64,7 +64,7 @@ public function bootstrapDeletedFunction(array $args = []) {
      * @return string Returns the Bootstrap heading 1.
      */
     public function bootstrapHeading1Function(array $args = []) {
-        return $this->bootstrapHeading(1, ArrayUtility::get($args, "content"), ArrayUtility::get($args, "description"), ArrayUtility::get($args, "class"));
+        return $this->bootstrapHeading(1, ArrayHelper::get($args, "content"), ArrayHelper::get($args, "description"), ArrayHelper::get($args, "class"));
     }
 
     /**
@@ -74,7 +74,7 @@ public function bootstrapHeading1Function(array $args = []) {
      * @return string Returns the Bootstrap heading 2.
      */
     public function bootstrapHeading2Function(array $args = []) {
-        return $this->bootstrapHeading(2, ArrayUtility::get($args, "content"), ArrayUtility::get($args, "description"), ArrayUtility::get($args, "class"));
+        return $this->bootstrapHeading(2, ArrayHelper::get($args, "content"), ArrayHelper::get($args, "description"), ArrayHelper::get($args, "class"));
     }
 
     /**
@@ -84,7 +84,7 @@ public function bootstrapHeading2Function(array $args = []) {
      * @return string Returns the Bootstrap heading 3.
      */
     public function bootstrapHeading3Function(array $args = []) {
-        return $this->bootstrapHeading(3, ArrayUtility::get($args, "content"), ArrayUtility::get($args, "description"), ArrayUtility::get($args, "class"));
+        return $this->bootstrapHeading(3, ArrayHelper::get($args, "content"), ArrayHelper::get($args, "description"), ArrayHelper::get($args, "class"));
     }
 
     /**
@@ -94,7 +94,7 @@ public function bootstrapHeading3Function(array $args = []) {
      * @return string Returns the Bootstrap heading 4.
      */
     public function bootstrapHeading4Function(array $args = []) {
-        return $this->bootstrapHeading(4, ArrayUtility::get($args, "content"), ArrayUtility::get($args, "description"), ArrayUtility::get($args, "class"));
+        return $this->bootstrapHeading(4, ArrayHelper::get($args, "content"), ArrayHelper::get($args, "description"), ArrayHelper::get($args, "class"));
     }
 
     /**
@@ -104,7 +104,7 @@ public function bootstrapHeading4Function(array $args = []) {
      * @return string Returns the Bootstrap heading 5.
      */
     public function bootstrapHeading5Function(array $args = []) {
-        return $this->bootstrapHeading(5, ArrayUtility::get($args, "content"), ArrayUtility::get($args, "description"), ArrayUtility::get($args, "class"));
+        return $this->bootstrapHeading(5, ArrayHelper::get($args, "content"), ArrayHelper::get($args, "description"), ArrayHelper::get($args, "class"));
     }
 
     /**
@@ -114,7 +114,7 @@ public function bootstrapHeading5Function(array $args = []) {
      * @return string Returns the Bootstrap heading 6.
      */
     public function bootstrapHeading6Function(array $args = []) {
-        return $this->bootstrapHeading(6, ArrayUtility::get($args, "content"), ArrayUtility::get($args, "description"), ArrayUtility::get($args, "class"));
+        return $this->bootstrapHeading(6, ArrayHelper::get($args, "content"), ArrayHelper::get($args, "description"), ArrayHelper::get($args, "class"));
     }
 
     /**
@@ -124,7 +124,7 @@ public function bootstrapHeading6Function(array $args = []) {
      * @return string Returns the Bootstrap inserted text.
      */
     public function bootstrapInsertedFunction(array $args = []) {
-        return $this->bootstrapInserted(ArrayUtility::get($args, "content"));
+        return $this->bootstrapInserted(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -134,7 +134,7 @@ public function bootstrapInsertedFunction(array $args = []) {
      * @return string Returns the Bootstrap marked text.
      */
     public function bootstrapMarkedFunction(array $args = []) {
-        return $this->bootstrapMarked(ArrayUtility::get($args, "content"));
+        return $this->bootstrapMarked(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -144,7 +144,7 @@ public function bootstrapMarkedFunction(array $args = []) {
      * @return string Returns the Bootstrap italic text.
      */
     public function bootstrapItalicFunction(array $args = []) {
-        return $this->bootstrapItalic(ArrayUtility::get($args, "content"));
+        return $this->bootstrapItalic(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -154,7 +154,7 @@ public function bootstrapItalicFunction(array $args = []) {
      * @return string Returns the Bootstrap small text.
      */
     public function bootstrapSmallFunction(array $args = []) {
-        return $this->bootstrapSmall(ArrayUtility::get($args, "content"));
+        return $this->bootstrapSmall(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -164,7 +164,7 @@ public function bootstrapSmallFunction(array $args = []) {
      * @return string Returns the Bootstrap strike through text.
      */
     public function bootstrapStrikeThroughFunction(array $args = []) {
-        return $this->bootstrapStrikeThrough(ArrayUtility::get($args, "content"));
+        return $this->bootstrapStrikeThrough(ArrayHelper::get($args, "content"));
     }
 
     /**
@@ -174,7 +174,7 @@ public function bootstrapStrikeThroughFunction(array $args = []) {
      * @return string Returns the Bootstrap underlined text.
      */
     public function bootstrapUnderlinedFunction(array $args = []) {
-        return $this->bootstrapUnderlined(ArrayUtility::get($args, "content"));
+        return $this->bootstrapUnderlined(ArrayHelper::get($args, "content"));
     }
 
     /**
diff --git a/Twig/Extension/Component/AbstractDropdownTwigExtension.php b/Twig/Extension/Component/AbstractDropdownTwigExtension.php
index 9611f0b0..2e498b87 100644
--- a/Twig/Extension/Component/AbstractDropdownTwigExtension.php
+++ b/Twig/Extension/Component/AbstractDropdownTwigExtension.php
@@ -13,7 +13,7 @@
 
 use WBW\Bundle\BootstrapBundle\BootstrapBundle;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\AbstractBootstrapTwigExtension;
-use WBW\Library\Core\Utility\Argument\StringUtility;
+use WBW\Library\Core\Helper\Argument\StringHelper;
 
 /**
  * Abstract dropdown Twig extension.
@@ -55,7 +55,7 @@ protected function bootstrapDropdownButton($content, $id, $expanded, $class) {
         $attributes["id"][]            = null !== $id ? $id : "";
         $attributes["data-toggle"][]   = "dropdown";
         $attributes["aria-haspopup"][] = "true";
-        $attributes["aria-expanded"][] = StringUtility::parseBoolean($expanded);
+        $attributes["aria-expanded"][] = StringHelper::parseBoolean($expanded);
 
         // Initialize the parameters.
         $innerHTML = (null !== $content ? $content : "") . "<span class=\"caret\"></span>";
diff --git a/Twig/Extension/Component/AlertTwigExtension.php b/Twig/Extension/Component/AlertTwigExtension.php
index c94de7be..7dc30e9c 100644
--- a/Twig/Extension/Component/AlertTwigExtension.php
+++ b/Twig/Extension/Component/AlertTwigExtension.php
@@ -14,7 +14,7 @@
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\BootstrapBundle;
 use WBW\Bundle\BootstrapBundle\Navigation\NavigationInterface;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Alert Twig extension.
@@ -46,7 +46,7 @@ public function __construct() {
      * @return string Returns the Bootstrap alert "Danger".
      */
     public function bootstrapAlertDangerFunction(array $args = []) {
-        return $this->bootstrapAlert(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "dismissible"), "alert-" . BootstrapBundle::BOOTSTRAP_DANGER);
+        return $this->bootstrapAlert(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "dismissible"), "alert-" . BootstrapBundle::BOOTSTRAP_DANGER);
     }
 
     /**
@@ -56,7 +56,7 @@ public function bootstrapAlertDangerFunction(array $args = []) {
      * @return string Returns the Bootstrap alert "Info".
      */
     public function bootstrapAlertInfoFunction(array $args = []) {
-        return $this->bootstrapAlert(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "dismissible"), "alert-" . BootstrapBundle::BOOTSTRAP_INFO);
+        return $this->bootstrapAlert(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "dismissible"), "alert-" . BootstrapBundle::BOOTSTRAP_INFO);
     }
 
     /**
@@ -70,10 +70,10 @@ public function bootstrapAlertLinkFunction(array $args = []) {
         // Initialize the attributes.
         $attributes = [];
 
-        $attributes["href"] = ArrayUtility::get($args, "href", NavigationInterface::NAVIGATION_HREF_DEFAULT);
+        $attributes["href"] = ArrayHelper::get($args, "href", NavigationInterface::NAVIGATION_HREF_DEFAULT);
 
         // Initialize the parameters.
-        $innerHTML = ArrayUtility::get($args, "content");
+        $innerHTML = ArrayHelper::get($args, "content");
 
         // Return the HTML.
         return self::bootstrapHTMLElement("a", $innerHTML, $attributes);
@@ -86,7 +86,7 @@ public function bootstrapAlertLinkFunction(array $args = []) {
      * @return string Returns the Bootstrap alert "Success".
      */
     public function bootstrapAlertSuccessFunction(array $args = []) {
-        return $this->bootstrapAlert(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "dismissible"), "alert-" . BootstrapBundle::BOOTSTRAP_SUCCESS);
+        return $this->bootstrapAlert(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "dismissible"), "alert-" . BootstrapBundle::BOOTSTRAP_SUCCESS);
     }
 
     /**
@@ -96,7 +96,7 @@ public function bootstrapAlertSuccessFunction(array $args = []) {
      * @return string Returns the Bootstrap alert "Warning".
      */
     public function bootstrapAlertWarningFunction(array $args = []) {
-        return $this->bootstrapAlert(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "dismissible"), "alert-" . BootstrapBundle::BOOTSTRAP_WARNING);
+        return $this->bootstrapAlert(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "dismissible"), "alert-" . BootstrapBundle::BOOTSTRAP_WARNING);
     }
 
     /**
diff --git a/Twig/Extension/Component/BadgeTwigExtension.php b/Twig/Extension/Component/BadgeTwigExtension.php
index 54cc877e..d7d18a6c 100644
--- a/Twig/Extension/Component/BadgeTwigExtension.php
+++ b/Twig/Extension/Component/BadgeTwigExtension.php
@@ -12,7 +12,7 @@
 namespace WBW\Bundle\BootstrapBundle\Twig\Extension\Component;
 
 use Twig_SimpleFunction;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Badge component Twig extension.
@@ -44,7 +44,7 @@ public function __construct() {
      * @return string Returns the Bootstrap badge.
      */
     public function bootstrapBadgeFunction(array $args = []) {
-        return $this->bootstrapBadge(ArrayUtility::get($args, "content"));
+        return $this->bootstrapBadge(ArrayHelper::get($args, "content"));
     }
 
     /**
diff --git a/Twig/Extension/Component/DropdownTwigExtension.php b/Twig/Extension/Component/DropdownTwigExtension.php
index 581dffc5..62a3a6a0 100644
--- a/Twig/Extension/Component/DropdownTwigExtension.php
+++ b/Twig/Extension/Component/DropdownTwigExtension.php
@@ -12,7 +12,7 @@
 namespace WBW\Bundle\BootstrapBundle\Twig\Extension\Component;
 
 use Twig_SimpleFunction;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Dropdown Twig extension.
@@ -44,7 +44,7 @@ public function __construct() {
      * @return string Returns the Bootstrap dropdown "Button".
      */
     public function bootstrapDropdownButtonFunction(array $args = []) {
-        return $this->bootstrapDropdownButton(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "id"), ArrayUtility::get($args, "expanded", true), ArrayUtility::get($args, "class", "default"));
+        return $this->bootstrapDropdownButton(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "id"), ArrayHelper::get($args, "expanded", true), ArrayHelper::get($args, "class", "default"));
     }
 
     /**
@@ -63,7 +63,7 @@ public function bootstrapDropdownDividerFunction() {
      * @return string Returns the Bootstrap dropdown "Header".
      */
     public function bootstrapDropdownHeaderFunction(array $args = []) {
-        return $this->bootstrapDropdownHeader(ArrayUtility::get($args, "content"));
+        return $this->bootstrapDropdownHeader(ArrayHelper::get($args, "content"));
     }
 
     /**
diff --git a/Twig/Extension/Component/GlyphiconTwigExtension.php b/Twig/Extension/Component/GlyphiconTwigExtension.php
index 715a0a40..631df119 100644
--- a/Twig/Extension/Component/GlyphiconTwigExtension.php
+++ b/Twig/Extension/Component/GlyphiconTwigExtension.php
@@ -13,7 +13,7 @@
 
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\IconRendererTwigExtensionInterface;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Glyphicon Twig extension.
@@ -45,7 +45,7 @@ public function __construct() {
      * @return string Returns the Bootstrap glyphicon.
      */
     public function bootstrapGlyphiconFunction(array $args = []) {
-        return $this->bootstrapGlyphicon(ArrayUtility::get($args, "name", "home"), ArrayUtility::get($args, "style"));
+        return $this->bootstrapGlyphicon(ArrayHelper::get($args, "name", "home"), ArrayHelper::get($args, "style"));
     }
 
     /**
diff --git a/Twig/Extension/Component/LabelTwigExtension.php b/Twig/Extension/Component/LabelTwigExtension.php
index 81dab185..758cee2e 100644
--- a/Twig/Extension/Component/LabelTwigExtension.php
+++ b/Twig/Extension/Component/LabelTwigExtension.php
@@ -13,7 +13,7 @@
 
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\BootstrapBundle;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Label Twig extension.
@@ -45,7 +45,7 @@ public function __construct() {
      * @return string Returns the Bootstrap label "Danger".
      */
     public function bootstrapLabelDangerFunction(array $args = []) {
-        return $this->bootstrapLabel(ArrayUtility::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_DANGER);
+        return $this->bootstrapLabel(ArrayHelper::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_DANGER);
     }
 
     /**
@@ -55,7 +55,7 @@ public function bootstrapLabelDangerFunction(array $args = []) {
      * @return string Returns the Bootstrap label "Default".
      */
     public function bootstrapLabelDefaultFunction(array $args = []) {
-        return $this->bootstrapLabel(ArrayUtility::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_DEFAULT);
+        return $this->bootstrapLabel(ArrayHelper::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_DEFAULT);
     }
 
     /**
@@ -65,7 +65,7 @@ public function bootstrapLabelDefaultFunction(array $args = []) {
      * @return string Returns the Bootstrap label "Info".
      */
     public function bootstrapLabelInfoFunction(array $args = []) {
-        return $this->bootstrapLabel(ArrayUtility::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_INFO);
+        return $this->bootstrapLabel(ArrayHelper::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_INFO);
     }
 
     /**
@@ -75,7 +75,7 @@ public function bootstrapLabelInfoFunction(array $args = []) {
      * @return string Returns the Bootstrap label "Primary".
      */
     public function bootstrapLabelPrimaryFunction(array $args = []) {
-        return $this->bootstrapLabel(ArrayUtility::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_PRIMARY);
+        return $this->bootstrapLabel(ArrayHelper::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_PRIMARY);
     }
 
     /**
@@ -85,7 +85,7 @@ public function bootstrapLabelPrimaryFunction(array $args = []) {
      * @return string Returns the Bootstrap label "Success".
      */
     public function bootstrapLabelSuccessFunction(array $args = []) {
-        return $this->bootstrapLabel(ArrayUtility::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_SUCCESS);
+        return $this->bootstrapLabel(ArrayHelper::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_SUCCESS);
     }
 
     /**
@@ -95,7 +95,7 @@ public function bootstrapLabelSuccessFunction(array $args = []) {
      * @return string Returns the Bootstrap label "Warning".
      */
     public function bootstrapLabelWarningFunction(array $args = []) {
-        return $this->bootstrapLabel(ArrayUtility::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_WARNING);
+        return $this->bootstrapLabel(ArrayHelper::get($args, "content"), "label-" . BootstrapBundle::BOOTSTRAP_WARNING);
     }
 
     /**
diff --git a/Twig/Extension/Component/ProgressBarTwigExtension.php b/Twig/Extension/Component/ProgressBarTwigExtension.php
index 5de6d16c..79d4ee89 100644
--- a/Twig/Extension/Component/ProgressBarTwigExtension.php
+++ b/Twig/Extension/Component/ProgressBarTwigExtension.php
@@ -13,7 +13,7 @@
 
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\BootstrapBundle;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Progress bar Twig extension.
@@ -45,7 +45,7 @@ public function __construct() {
      * @return string Returns the Bootstrap progress bar "Basic".
      */
     public function bootstrapProgressBarBasicFunction(array $args = []) {
-        return $this->bootstrapProgressBar(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "value", 50), ArrayUtility::get($args, "min", 0), ArrayUtility::get($args, "max", 100), ArrayUtility::get($args, "striped", false), ArrayUtility::get($args, "animated", false));
+        return $this->bootstrapProgressBar(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "value", 50), ArrayHelper::get($args, "min", 0), ArrayHelper::get($args, "max", 100), ArrayHelper::get($args, "striped", false), ArrayHelper::get($args, "animated", false));
     }
 
     /**
@@ -55,7 +55,7 @@ public function bootstrapProgressBarBasicFunction(array $args = []) {
      * @return string Returns the Bootstrap progress bar "Danger".
      */
     public function bootstrapProgressBarDangerFunction(array $args = []) {
-        return $this->bootstrapProgressBar(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "value", 50), ArrayUtility::get($args, "min", 0), ArrayUtility::get($args, "max", 100), ArrayUtility::get($args, "striped", false), ArrayUtility::get($args, "animated", false), "progress-bar-" . BootstrapBundle::BOOTSTRAP_DANGER);
+        return $this->bootstrapProgressBar(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "value", 50), ArrayHelper::get($args, "min", 0), ArrayHelper::get($args, "max", 100), ArrayHelper::get($args, "striped", false), ArrayHelper::get($args, "animated", false), "progress-bar-" . BootstrapBundle::BOOTSTRAP_DANGER);
     }
 
     /**
@@ -65,7 +65,7 @@ public function bootstrapProgressBarDangerFunction(array $args = []) {
      * @return string Returns the Bootstrap progress bar "Info".
      */
     public function bootstrapProgressBarInfoFunction(array $args = []) {
-        return $this->bootstrapProgressBar(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "value", 50), ArrayUtility::get($args, "min", 0), ArrayUtility::get($args, "max", 100), ArrayUtility::get($args, "striped", false), ArrayUtility::get($args, "animated", false), "progress-bar-" . BootstrapBundle::BOOTSTRAP_INFO);
+        return $this->bootstrapProgressBar(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "value", 50), ArrayHelper::get($args, "min", 0), ArrayHelper::get($args, "max", 100), ArrayHelper::get($args, "striped", false), ArrayHelper::get($args, "animated", false), "progress-bar-" . BootstrapBundle::BOOTSTRAP_INFO);
     }
 
     /**
@@ -75,7 +75,7 @@ public function bootstrapProgressBarInfoFunction(array $args = []) {
      * @return string Returns the Bootstrap progress bar "Success".
      */
     public function bootstrapProgressBarSuccessFunction(array $args = []) {
-        return $this->bootstrapProgressBar(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "value", 50), ArrayUtility::get($args, "min", 0), ArrayUtility::get($args, "max", 100), ArrayUtility::get($args, "striped", false), ArrayUtility::get($args, "animated", false), "progress-bar-" . BootstrapBundle::BOOTSTRAP_SUCCESS);
+        return $this->bootstrapProgressBar(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "value", 50), ArrayHelper::get($args, "min", 0), ArrayHelper::get($args, "max", 100), ArrayHelper::get($args, "striped", false), ArrayHelper::get($args, "animated", false), "progress-bar-" . BootstrapBundle::BOOTSTRAP_SUCCESS);
     }
 
     /**
@@ -85,7 +85,7 @@ public function bootstrapProgressBarSuccessFunction(array $args = []) {
      * @return string Returns the Bootstrap progress bar "Warning".
      */
     public function bootstrapProgressBarWarningFunction(array $args = []) {
-        return $this->bootstrapProgressBar(ArrayUtility::get($args, "content"), ArrayUtility::get($args, "value", 50), ArrayUtility::get($args, "min", 0), ArrayUtility::get($args, "max", 100), ArrayUtility::get($args, "striped", false), ArrayUtility::get($args, "animated", false), "progress-bar-" . BootstrapBundle::BOOTSTRAP_WARNING);
+        return $this->bootstrapProgressBar(ArrayHelper::get($args, "content"), ArrayHelper::get($args, "value", 50), ArrayHelper::get($args, "min", 0), ArrayHelper::get($args, "max", 100), ArrayHelper::get($args, "striped", false), ArrayHelper::get($args, "animated", false), "progress-bar-" . BootstrapBundle::BOOTSTRAP_WARNING);
     }
 
     /**
diff --git a/Twig/Extension/Plugin/AbstractJQueryInputMaskTwigExtension.php b/Twig/Extension/Plugin/AbstractJQueryInputMaskTwigExtension.php
index 80f47a2c..81ef8e2f 100644
--- a/Twig/Extension/Plugin/AbstractJQueryInputMaskTwigExtension.php
+++ b/Twig/Extension/Plugin/AbstractJQueryInputMaskTwigExtension.php
@@ -13,7 +13,7 @@
 
 use WBW\Bundle\BootstrapBundle\Twig\Extension\AbstractBootstrapTwigExtension;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\BootstrapRendererTwigExtension;
-use WBW\Library\Core\Utility\Argument\StringUtility;
+use WBW\Library\Core\Helper\Argument\StringHelper;
 
 /**
  * Abstract jQuery input mask Twig extension.
@@ -65,7 +65,7 @@ protected function jQueryInputMask($selector, $mask, array $options, $scriptTag)
         $template = "$('%selector%').inputmask(\"%mask%\",%arguments%);";
 
         // Initialize the parameters.
-        $innerHTML = StringUtility::replace($template, ["%selector%", "%mask%", "%arguments%"], [$selector, $mask, json_encode($options)]);
+        $innerHTML = StringHelper::replace($template, ["%selector%", "%mask%", "%arguments%"], [$selector, $mask, json_encode($options)]);
 
         // Return the HTML
         if (true === $scriptTag) {
diff --git a/Twig/Extension/Plugin/AbstractMaterialDesignIconicFontTwigExtension.php b/Twig/Extension/Plugin/AbstractMaterialDesignIconicFontTwigExtension.php
index d0ecaa2d..5b488990 100644
--- a/Twig/Extension/Plugin/AbstractMaterialDesignIconicFontTwigExtension.php
+++ b/Twig/Extension/Plugin/AbstractMaterialDesignIconicFontTwigExtension.php
@@ -12,7 +12,7 @@
 namespace WBW\Bundle\BootstrapBundle\Twig\Extension\Plugin;
 
 use WBW\Bundle\BootstrapBundle\Twig\Extension\AbstractBootstrapTwigExtension;
-use WBW\Library\Core\Utility\Argument\StringUtility;
+use WBW\Library\Core\Helper\Argument\StringHelper;
 
 /**
  * Abstract Material Design Iconic Font Twig extension.
@@ -97,7 +97,7 @@ protected function materialDesignIconicFontList($items) {
     protected function materialDesignIconicFontListIcon($icon, $content) {
 
         // Initialize the parameters.
-        $glyphicon = null !== $icon ? StringUtility::replace($icon, ["class=\"zmdi"], ["class=\"zmdi-hc-li zmdi"]) : "";
+        $glyphicon = null !== $icon ? StringHelper::replace($icon, ["class=\"zmdi"], ["class=\"zmdi-hc-li zmdi"]) : "";
         $innerHTML = null !== $content ? $content : "";
 
         // Return the HTML.
diff --git a/Twig/Extension/Plugin/FontAwesomeTwigExtension.php b/Twig/Extension/Plugin/FontAwesomeTwigExtension.php
index 35a0a2ef..a654cd00 100644
--- a/Twig/Extension/Plugin/FontAwesomeTwigExtension.php
+++ b/Twig/Extension/Plugin/FontAwesomeTwigExtension.php
@@ -14,7 +14,7 @@
 use Twig_SimpleFilter;
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\IconRendererTwigExtensionInterface;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Font Awesome Twig extension.
@@ -45,7 +45,7 @@ public function __construct() {
      * @return Returns the Font Awesome icon.
      */
     public function fontAwesomeIconFunction(array $args = []) {
-        return $this->fontAwesomeIcon(ArrayUtility::get($args, "font"), ArrayUtility::get($args, "name", "home"), ArrayUtility::get($args, "size"), ArrayUtility::get($args, "fixedWidth", false), ArrayUtility::get($args, "bordered", false), ArrayUtility::get($args, "pull"), ArrayUtility::get($args, "animated"), ArrayUtility::get($args, "style"));
+        return $this->fontAwesomeIcon(ArrayHelper::get($args, "font"), ArrayHelper::get($args, "name", "home"), ArrayHelper::get($args, "size"), ArrayHelper::get($args, "fixedWidth", false), ArrayHelper::get($args, "bordered", false), ArrayHelper::get($args, "pull"), ArrayHelper::get($args, "animated"), ArrayHelper::get($args, "style"));
     }
 
     /**
diff --git a/Twig/Extension/Plugin/JQueryInputMaskTwigExtension.php b/Twig/Extension/Plugin/JQueryInputMaskTwigExtension.php
index 3769419f..1e0f16c2 100644
--- a/Twig/Extension/Plugin/JQueryInputMaskTwigExtension.php
+++ b/Twig/Extension/Plugin/JQueryInputMaskTwigExtension.php
@@ -13,7 +13,7 @@
 
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\BootstrapRendererTwigExtension;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * jQuery Input mask Twig Extension.
@@ -46,7 +46,7 @@ public function __construct(BootstrapRendererTwigExtension $renderer) {
      * @return string Returns the jQuery input mask.
      */
     public function jQueryInputMaskFunction(array $args = []) {
-        return $this->jQueryInputMask(ArrayUtility::get($args, "selector"), ArrayUtility::get($args, "mask", ""), ArrayUtility::get($args, "opts", []), ArrayUtility::get($args, "scriptTag", false));
+        return $this->jQueryInputMask(ArrayHelper::get($args, "selector"), ArrayHelper::get($args, "mask", ""), ArrayHelper::get($args, "opts", []), ArrayHelper::get($args, "scriptTag", false));
     }
 
     /**
@@ -57,7 +57,7 @@ public function jQueryInputMaskFunction(array $args = []) {
      */
     public function jQueryInputMaskPhoneNumberFunction(array $args = []) {
         $defaultMask = "99 99 99 99 99";
-        return $this->jQueryInputMask(ArrayUtility::get($args, "selector"), $defaultMask, $this->prepareOptions($args, $defaultMask), ArrayUtility::get($args, "scriptTag", false));
+        return $this->jQueryInputMask(ArrayHelper::get($args, "selector"), $defaultMask, $this->prepareOptions($args, $defaultMask), ArrayHelper::get($args, "scriptTag", false));
     }
 
     /**
@@ -68,7 +68,7 @@ public function jQueryInputMaskPhoneNumberFunction(array $args = []) {
      */
     public function jQueryInputMaskSIRETNumberFunction(array $args = []) {
         $defaultMask = "999 999 999 99999";
-        return $this->jQueryInputMask(ArrayUtility::get($args, "selector"), $defaultMask, $this->prepareOptions($args, $defaultMask), ArrayUtility::get($args, "scriptTag", false));
+        return $this->jQueryInputMask(ArrayHelper::get($args, "selector"), $defaultMask, $this->prepareOptions($args, $defaultMask), ArrayHelper::get($args, "scriptTag", false));
     }
 
     /**
@@ -79,7 +79,7 @@ public function jQueryInputMaskSIRETNumberFunction(array $args = []) {
      */
     public function jQueryInputMaskSocialSecurityNumberFunction(array $args = []) {
         $defaultMask = "9 99 99 99 999 999 99";
-        return $this->jQueryInputMask(ArrayUtility::get($args, "selector"), $defaultMask, $this->prepareOptions($args, $defaultMask), ArrayUtility::get($args, "scriptTag", false));
+        return $this->jQueryInputMask(ArrayHelper::get($args, "selector"), $defaultMask, $this->prepareOptions($args, $defaultMask), ArrayHelper::get($args, "scriptTag", false));
     }
 
     /**
@@ -90,7 +90,7 @@ public function jQueryInputMaskSocialSecurityNumberFunction(array $args = []) {
      */
     public function jQueryInputMaskTime12Function(array $args = []) {
         $defaultMask = "hh:mm t";
-        return $this->jQueryInputMask(ArrayUtility::get($args, "selector"), $defaultMask, array_merge($this->prepareOptions($args, null), ["hourFormat" => "12", "placeholder" => "__:__ _m"]), ArrayUtility::get($args, "scriptTag", false));
+        return $this->jQueryInputMask(ArrayHelper::get($args, "selector"), $defaultMask, array_merge($this->prepareOptions($args, null), ["hourFormat" => "12", "placeholder" => "__:__ _m"]), ArrayHelper::get($args, "scriptTag", false));
     }
 
     /**
@@ -101,7 +101,7 @@ public function jQueryInputMaskTime12Function(array $args = []) {
      */
     public function jQueryInputMaskTime24Function(array $args = []) {
         $defaultMask = "hh:mm";
-        return $this->jQueryInputMask(ArrayUtility::get($args, "selector"), $defaultMask, array_merge($this->prepareOptions($args, null), ["hourFormat" => "24", "placeholder" => "__:__"]), ArrayUtility::get($args, "scriptTag", false));
+        return $this->jQueryInputMask(ArrayHelper::get($args, "selector"), $defaultMask, array_merge($this->prepareOptions($args, null), ["hourFormat" => "24", "placeholder" => "__:__"]), ArrayHelper::get($args, "scriptTag", false));
     }
 
     /**
@@ -112,7 +112,7 @@ public function jQueryInputMaskTime24Function(array $args = []) {
      */
     public function jQueryInputMaskVATNumberFunction(array $args = []) {
         $defaultMask = "**999 999 999 99";
-        return $this->jQueryInputMask(ArrayUtility::get($args, "selector"), $defaultMask, $this->prepareOptions($args, $defaultMask), ArrayUtility::get($args, "scriptTag", false));
+        return $this->jQueryInputMask(ArrayHelper::get($args, "selector"), $defaultMask, $this->prepareOptions($args, $defaultMask), ArrayHelper::get($args, "scriptTag", false));
     }
 
     /**
@@ -142,10 +142,10 @@ public function getFunctions() {
     private function prepareOptions(array $args, $defaultMask) {
 
         // Initialize the options.
-        $options = ArrayUtility::get($args, "opts", []);
+        $options = ArrayHelper::get($args, "opts", []);
 
-        $options["autoUnmask"]         = ArrayUtility::get($options, "autoUnmask", true);
-        $options["removeMaskOnSubmit"] = ArrayUtility::get($options, "removeMaskOnSubmit", true);
+        $options["autoUnmask"]         = ArrayHelper::get($options, "autoUnmask", true);
+        $options["removeMaskOnSubmit"] = ArrayHelper::get($options, "removeMaskOnSubmit", true);
         if (null !== $defaultMask) {
             $options["placeholder"] = preg_replace("/[^\ ][.]*/", "_", $defaultMask);
         }
diff --git a/Twig/Extension/Plugin/MaterialDesignIconicFontTwigExtension.php b/Twig/Extension/Plugin/MaterialDesignIconicFontTwigExtension.php
index 42ff3ad2..026b0fbf 100644
--- a/Twig/Extension/Plugin/MaterialDesignIconicFontTwigExtension.php
+++ b/Twig/Extension/Plugin/MaterialDesignIconicFontTwigExtension.php
@@ -14,7 +14,7 @@
 use Twig_SimpleFilter;
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\IconRendererTwigExtensionInterface;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Material Design Iconic Font Twig extension.
@@ -68,7 +68,7 @@ public function getFunctions() {
      * @return Returns the Material Design Iconic Font icon.
      */
     public function materialDesignIconicFontIconFunction(array $args = []) {
-        return $this->materialDesignIconicFontIcon(ArrayUtility::get($args, "name", "home"), ArrayUtility::get($args, "size"), ArrayUtility::get($args, "fixedWidth", false), ArrayUtility::get($args, "border", false), ArrayUtility::get($args, "pull"), ArrayUtility::get($args, "spin"), ArrayUtility::get($args, "rotate"), ArrayUtility::get($args, "flip"), ArrayUtility::get($args, "style"));
+        return $this->materialDesignIconicFontIcon(ArrayHelper::get($args, "name", "home"), ArrayHelper::get($args, "size"), ArrayHelper::get($args, "fixedWidth", false), ArrayHelper::get($args, "border", false), ArrayHelper::get($args, "pull"), ArrayHelper::get($args, "spin"), ArrayHelper::get($args, "rotate"), ArrayHelper::get($args, "flip"), ArrayHelper::get($args, "style"));
     }
 
     /**
diff --git a/Twig/Extension/Plugin/MeteoconsTwigExtension.php b/Twig/Extension/Plugin/MeteoconsTwigExtension.php
index 091c2210..52652cc1 100644
--- a/Twig/Extension/Plugin/MeteoconsTwigExtension.php
+++ b/Twig/Extension/Plugin/MeteoconsTwigExtension.php
@@ -13,7 +13,7 @@
 
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\IconRendererTwigExtensionInterface;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Meteocons Twig extension.
@@ -55,7 +55,7 @@ public function getFunctions() {
      * @return string Returns a Meteocons icon.
      */
     public function meteoconsIconFunction(array $args = []) {
-        return $this->meteoconsIcon(ArrayUtility::get($args, "name", "A"), ArrayUtility::get($args, "style"));
+        return $this->meteoconsIcon(ArrayHelper::get($args, "name", "A"), ArrayHelper::get($args, "style"));
     }
 
     /**
diff --git a/Twig/Extension/Utility/FormButtonTwigExtension.php b/Twig/Extension/Utility/FormButtonTwigExtension.php
index 8f49dad3..d3d2ba50 100644
--- a/Twig/Extension/Utility/FormButtonTwigExtension.php
+++ b/Twig/Extension/Utility/FormButtonTwigExtension.php
@@ -14,7 +14,7 @@
 use Symfony\Component\Translation\TranslatorInterface;
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\CSS\ButtonTwigExtension;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Form button Twig extension.
@@ -64,7 +64,7 @@ public function bootstrapFormButtonCancelFunction(array $args = []) {
         $but = $this->getExtension()->bootstrapButtonDefaultFunction(["content" => $txt, "title" => $txt, "icon" => "remove"]);
 
         // Return the HTML.
-        return $this->getExtension()->bootstrapButtonLinkFilter($but, ArrayUtility::get($args, "href", self::DEFAULT_HREF));
+        return $this->getExtension()->bootstrapButtonLinkFilter($but, ArrayHelper::get($args, "href", self::DEFAULT_HREF));
     }
 
     /**
@@ -76,7 +76,7 @@ public function bootstrapFormButtonCancelFunction(array $args = []) {
     public function bootstrapFormButtonDefaultFunction(array $args = []) {
 
         // Initialize the buttons.
-        $cancelButton = $this->bootstrapFormButtonCancelFunction(["href" => ArrayUtility::get($args, "cancel_href")]);
+        $cancelButton = $this->bootstrapFormButtonCancelFunction(["href" => ArrayHelper::get($args, "cancel_href")]);
         $submitButton = $this->bootstrapFormButtonSubmitFunction();
 
         // Return the HTML.
diff --git a/Twig/Extension/Utility/RoleLabelTwigExtension.php b/Twig/Extension/Utility/RoleLabelTwigExtension.php
index d4d6ee0f..be269325 100644
--- a/Twig/Extension/Utility/RoleLabelTwigExtension.php
+++ b/Twig/Extension/Utility/RoleLabelTwigExtension.php
@@ -16,7 +16,7 @@
 use Symfony\Component\Translation\TranslatorInterface;
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\Component\LabelTwigExtension;
-use WBW\Library\Core\Utility\Argument\StringUtility;
+use WBW\Library\Core\Helper\Argument\StringHelper;
 
 /**
  * Role label Twig extension.
@@ -62,7 +62,7 @@ public function __construct(TranslatorInterface $translator, LabelTwigExtension
     private function applyColor($label, $content, $color) {
         $searches = ">" . $content;
         $replaces = " style=\"background-color:" . $color . ";\"" . $searches;
-        return StringUtility::replace($label, [$searches], [$replaces]);
+        return StringHelper::replace($label, [$searches], [$replaces]);
     }
 
     /**
@@ -133,7 +133,7 @@ public function getExtension() {
      * Set the extension.
      *
      * @param LabelTwigExtension $extension The extension.
-     * @return RoleLabelUtilityTwigExtension Returns this role label utility Twig extension.
+     * @return RoleLabelHelperTwigExtension Returns this role label utility Twig extension.
      */
     protected function setExtension(LabelTwigExtension $extension) {
         $this->extension = $extension;
diff --git a/Twig/Extension/Utility/TableButtonTwigExtension.php b/Twig/Extension/Utility/TableButtonTwigExtension.php
index 4b8ce462..ff0619f2 100644
--- a/Twig/Extension/Utility/TableButtonTwigExtension.php
+++ b/Twig/Extension/Utility/TableButtonTwigExtension.php
@@ -14,7 +14,7 @@
 use Symfony\Component\Translation\TranslatorInterface;
 use Twig_SimpleFunction;
 use WBW\Bundle\BootstrapBundle\Twig\Extension\CSS\ButtonTwigExtension;
-use WBW\Library\Core\Utility\Argument\ArrayUtility;
+use WBW\Library\Core\Helper\Argument\ArrayHelper;
 
 /**
  * Table button Twig extension.
@@ -58,8 +58,8 @@ public function __construct(TranslatorInterface $translator, ButtonTwigExtension
     public function bootstrapRowButtonDefaultFunction(array $args = []) {
 
         // Initialize the buttons.
-        $editButton   = $this->bootstrapRowButtonEditFunction(["href" => ArrayUtility::get($args, "edit_href")]);
-        $deleteButton = $this->bootstrapRowButtonDeleteFunction(["href" => ArrayUtility::get($args, "delete_href")]);
+        $editButton   = $this->bootstrapRowButtonEditFunction(["href" => ArrayHelper::get($args, "edit_href")]);
+        $deleteButton = $this->bootstrapRowButtonDeleteFunction(["href" => ArrayHelper::get($args, "delete_href")]);
 
         // Return the HTML.
         return implode(" ", [$editButton, $deleteButton]);
@@ -80,7 +80,7 @@ public function bootstrapRowButtonDeleteFunction(array $args = []) {
         $but = $this->getExtension()->bootstrapButtonDangerFunction(["title" => $txt, "icon" => "trash"]);
 
         // Return the HTML.
-        return $this->getExtension()->bootstrapButtonLinkFilter($but, ArrayUtility::get($args, "href", self::DEFAULT_HREF));
+        return $this->getExtension()->bootstrapButtonLinkFilter($but, ArrayHelper::get($args, "href", self::DEFAULT_HREF));
     }
 
     /**
@@ -98,7 +98,7 @@ public function bootstrapRowButtonEditFunction(array $args = []) {
         $but = $this->getExtension()->bootstrapButtonDefaultFunction(["title" => $txt, "icon" => "pencil"]);
 
         // Return the HTML.
-        return $this->getExtension()->bootstrapButtonLinkFilter($but, ArrayUtility::get($args, "href", self::DEFAULT_HREF));
+        return $this->getExtension()->bootstrapButtonLinkFilter($but, ArrayHelper::get($args, "href", self::DEFAULT_HREF));
     }
 
     /**
@@ -127,7 +127,7 @@ public function getFunctions() {
      * Set the extension.
      *
      * @param ButtonTwigExtension $extension The extension.
-     * @return TableButtonUtilityTwigExtension Returns this table button Twig extension.
+     * @return TableButtonHelperTwigExtension Returns this table button Twig extension.
      */
     protected function setExtension(ButtonTwigExtension $extension) {
         $this->extension = $extension;
diff --git a/composer.json b/composer.json
index b9f99b70..d4b96bf6 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
         "symfony/serializer": "^2.6|^3.0",
         "symfony/translation": "^2.6|^3.0",
         "twig/twig": "^1.0||^2.0",
-        "webeweb/core-library": "^2.0",
+        "webeweb/core-library": "^3.0",
         "webeweb/syntaxhighlighter-bundle": "^1.0"
     },
     "require-dev": {