Bump versions

Author: maxmx

package.json

@@ -13,12 +13,11 @@
   "devDependencies": {
     "grunt": "~0.4.5",
     "grunt-autoprefixer": "~3.0.3",
+    "grunt-contrib-clean": "~0.7.0",
     "grunt-contrib-cssmin": "~0.14.0",
-    "grunt-contrib-clean": "~0.6.0",
-    "grunt-contrib-stylus": "~0.18.0",
-    "grunt-contrib-uglify": "~0.9.2",
-    "grunt-contrib-watch": "~0.6.1",
-    "stylus": "~0.47.0"
+    "grunt-contrib-stylus": "^0.22.0",
+    "grunt-contrib-uglify": "~0.11.0",
+    "grunt-contrib-watch": "~0.6.1"
   },
   "dependencies": {},
   "main": "index.js"