Reorder dependencies by A-Z and update 'em

package.json

@@ -4,11 +4,11 @@
   "dependencies": {},
   "devDependencies": {
     "grunt": "~0.4.1",
-    "grunt-contrib-jshint": "~0.6.3",
-    "grunt-contrib-nodeunit": "~0.2.0",
+    "grunt-contrib-concat": "~0.3.0",
+    "grunt-contrib-jshint": "~0.6.4",
+    "grunt-contrib-nodeunit": "~0.2.1",
     "grunt-contrib-sass": "~0.5.0",
     "grunt-contrib-watch": "~0.5.3",
-    "grunt-contrib-concat": "~0.3.0",
     "grunt-jekyll": "~0.3.9"
   },
   "keywords": [