Bump versions and update gulp task.

gulpfile.js

@@ -1,17 +1,16 @@
 var gulp = require('gulp');
 
 gulp.task('css', function() {
-    var sass = require('gulp-sass');
+    var sass = require('gulp-sass')(require('sass'));
     var postcss = require('gulp-postcss');
     var autoprefixer = require('autoprefixer');
 
     return gulp.src('./css/sass/*.scss')
         .pipe(sass({
-            outputStyle: 'nested',
             includePaths: ['./node_modules/susy/sass']
         }).on('error', sass.logError))
         .pipe(postcss([
-            autoprefixer({browsers: ['> 5%', '> 5% in US', 'last 2 versions']})
+            autoprefixer()
         ]))
         .pipe(gulp.dest('./css'));
 });

package.json

@@ -1,6 +1,6 @@
 {
   "name": "minimalist",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "\"Clean lines, architectural.\"",
   "main": "gulpfile.js",
   "devDependencies": {
@@ -31,5 +31,9 @@
   "bugs": {
     "url": "https://github.com/omeka/theme-minimalist/issues"
   },
-  "homepage": "https://github.com/omeka/theme-minimalist#readme"
+  "homepage": "https://github.com/omeka/theme-minimalist#readme",
+  "browserslist": [
+    "> 5%",
+    "> 1% in US"
+  ]
 }

theme.ini

@@ -8,7 +8,7 @@ description = "Clean lines, architectural."
 license = "GPLv3"
 website = "https://omeka.org"
 support_link = "https://omeka.org/forums/forum/themes-and-public-display"
-omeka_minimum_version="2.8"
-omeka_target_version="2.8"
-version="2.5.1"
+omeka_minimum_version="3.0"
+omeka_target_version="3.0"
+version="2.5.2"
 tags="lines, minimal, architectural, purple, white, mobile-first, sans-serif"