update cssmin to 0.12.2 #1179

package.json

@@ -29,7 +29,7 @@
   "devDependencies": {
     "grunt-contrib-qunit": "~0.5.2",
     "grunt-contrib-jshint": "~0.6.4",
-    "grunt-contrib-cssmin": "~0.4.1",
+    "grunt-contrib-cssmin": "~0.12.2",
     "grunt-contrib-uglify": "~0.2.4",
     "grunt-contrib-watch": "~0.5.3",
     "grunt-sass": "~0.14.0",