Merge pull request #11959 from ZDroid/update-grunt-csscomb

Update grunt-csscomb dependency

package.json

@@ -33,7 +33,7 @@
     "grunt-contrib-qunit": "~0.3.0",
     "grunt-contrib-uglify": "~0.2.4",
     "grunt-contrib-watch": "~0.5.3",
-    "grunt-csscomb": "~1.1.0",
+    "grunt-csscomb": "~1.2.1",
     "grunt-html-validation": "~0.1.11",
     "grunt-jekyll": "~0.4.0",
     "grunt-jscs-checker": "~0.2.5",