Update dependencies.

package.json

@@ -35,14 +35,14 @@
     "grunt-contrib-copy": "~0.8.0",
     "grunt-contrib-csslint": "~0.4.0",
     "grunt-contrib-cssmin": "~0.12.2",
-    "grunt-contrib-jshint": "~0.11.0",
+    "grunt-contrib-jshint": "~0.11.1",
     "grunt-contrib-sass": "~0.9.2",
-    "grunt-contrib-uglify": "~0.8.0",
+    "grunt-contrib-uglify": "~0.8.1",
     "grunt-contrib-watch": "~0.6.1",
     "grunt-csscomb": "~3.0.0",
-    "grunt-html": "~4.0.0",
+    "grunt-html": "~4.0.2",
     "grunt-jekyll": "~0.4.2",
-    "grunt-jscs": "~1.5.0",
+    "grunt-jscs": "~1.6.0",
     "grunt-sed": "~0.1.1",
     "load-grunt-tasks": "~3.1.0",
     "time-grunt": "~1.1.0"