[Security] Bump twitter-bootstrap-rails from 2.2.8 to 3.2.2

Bumps [twitter-bootstrap-rails](https://github.com/seyhunak/twitter-bootstrap-rails) from 2.2.8 to 3.2.2. **This update includes security fixes.**
- [Release notes](https://github.com/seyhunak/twitter-bootstrap-rails/releases)
- [Changelog](https://github.com/seyhunak/twitter-bootstrap-rails/blob/master/CHANGELOG.md)
- [Commits](https://github.com/seyhunak/twitter-bootstrap-rails/commits)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Gemfile

@@ -40,7 +40,7 @@ end
 gem 'uglifier'
 gem 'less-rails'
 
-gem 'twitter-bootstrap-rails', '~> 2.2.8'
+gem 'twitter-bootstrap-rails', '~> 3.2.2'
 gem 'sass-rails',   '~> 3.2.3'
 gem 'sass'
 

Gemfile.lock

@@ -277,10 +277,10 @@ GEM
       polyglot
       polyglot (>= 0.3.1)
     ttfunk (1.5.1)
-    twitter-bootstrap-rails (2.2.8)
+    twitter-bootstrap-rails (3.2.2)
       actionpack (>= 3.1)
-      execjs
-      rails (>= 3.1)
+      execjs (>= 2.2.2, >= 2.2)
+      less-rails (>= 2.5.0)
       railties (>= 3.1)
     tzinfo (0.3.55)
     uglifier (4.1.20)
@@ -344,7 +344,7 @@ DEPENDENCIES
   therubyracer (= 0.11.4)
   thin
   tinymce-rails
-  twitter-bootstrap-rails (~> 2.2.8)
+  twitter-bootstrap-rails (~> 3.2.2)
   uglifier
   validate_url
   wicked_pdf (= 1.1.0)