Bump devDependencies.

js/.jshintrc

@@ -6,7 +6,7 @@
   "expr"    : true,
   "forin"   : true,
   "freeze"  : true,
-  "latedef" : true,
+  "latedef" : false,
   "nonbsp"  : true,
   "strict"  : true,
   "undef"   : true,

js/push.js

@@ -26,7 +26,7 @@
   var transitionMap  = {
     'slide-in'  : 'slide-out',
     'slide-out' : 'slide-in',
-    fade     : 'fade'
+    fade        : 'fade'
   };
 
   var bars = {

package.json

@@ -37,13 +37,13 @@
     "grunt-contrib-csslint": "~0.5.0",
     "grunt-contrib-cssmin": "~0.14.0",
     "grunt-contrib-htmlmin": "~0.6.0",
-    "grunt-contrib-jshint": "~0.11.2",
+    "grunt-contrib-jshint": "~0.12.0",
     "grunt-contrib-uglify": "~0.11.0",
     "grunt-contrib-watch": "~0.6.1",
     "grunt-csscomb": "~3.1.0",
     "grunt-html": "~5.0.0",
     "grunt-jekyll": "~0.4.2",
-    "grunt-jscs": "~2.5.0",
+    "grunt-jscs": "~2.6.0",
     "grunt-sass": "~1.1.0",
     "grunt-sed": "twbs/grunt-sed#v0.2.0",
     "load-grunt-tasks": "~3.4.0",