Updated grunt dependencies

package.json

@@ -1,28 +1,28 @@
-{
-  "name": "woocommerce",
-  "title": "WooCommerce",
-  "version": "2.3.0",
-  "homepage": "http://www.woothemes.com/woocommerce/",
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/woothemes/woocommerce.git"
-  },
-  "main": "Gruntfile.js",
-  "devDependencies": {
-    "grunt": "^0.4.5",
-    "grunt-checktextdomain": "^0.1.1",
-    "grunt-contrib-clean": "^0.6.0",
-    "grunt-contrib-cssmin": "^0.12.2",
-    "grunt-contrib-jshint": "^0.11.0",
-    "grunt-contrib-sass": "^0.9.2",
-    "grunt-contrib-uglify": "^0.8.0",
-    "grunt-contrib-watch": "^0.6.1",
-    "grunt-shell": "^1.1.2",
-    "grunt-wp-i18n": "^0.5.0",
-    "node-bourbon": "^4.2.1-beta1"
-  },
-  "engines": {
-    "node": ">=0.8.0",
-    "npm": ">=1.1.0"
-  }
-}
+{
+  "name": "woocommerce",
+  "title": "WooCommerce",
+  "version": "2.4.0",
+  "homepage": "http://www.woothemes.com/woocommerce/",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/woothemes/woocommerce.git"
+  },
+  "main": "Gruntfile.js",
+  "devDependencies": {
+    "grunt": "^0.4.5",
+    "grunt-checktextdomain": "^1.0.0",
+    "grunt-contrib-clean": "^0.6.0",
+    "grunt-contrib-cssmin": "^0.12.3",
+    "grunt-contrib-jshint": "^0.11.2",
+    "grunt-contrib-sass": "^0.9.2",
+    "grunt-contrib-uglify": "^0.9.1",
+    "grunt-contrib-watch": "^0.6.1",
+    "grunt-shell": "^1.1.2",
+    "grunt-wp-i18n": "^0.5.2",
+    "node-bourbon": "^4.2.3"
+  },
+  "engines": {
+    "node": ">=0.8.0",
+    "npm": ">=1.1.0"
+  }
+}