fix(deps): upgrade dependencies

Author: passy

package.json

@@ -29,13 +29,13 @@
     "yo": ">=1.0.0-rc.1.1"
   },
   "devDependencies": {
-    "mocha": "~1.13.0",
+    "mocha": "~1.14.0",
     "grunt": "~0.4.1",
-    "grunt-contrib-jshint": "~0.6.0",
+    "grunt-contrib-jshint": "~0.7.2",
     "grunt-conventional-changelog": "~1.0.0",
-    "load-grunt-tasks": "~0.1.0",
+    "load-grunt-tasks": "~0.2.0",
     "marked": "~0.2.8",
-    "semver": "~2.1.0",
+    "semver": "~2.2.1",
     "underscore.string": "~2.3.1",
     "grunt-release": "~0.6.0"
   },