fix(ng2 blueprint): fix ordering in devDependencies of package.json blueprint

Fix the ordering of the devDependencies in the package.json so they are in correct alphabetical order.
Removes the minor annoyance (when looking at file diffs) of the ts-node property having its location changed
whenever a new module is added using npm install.

Close #288

Author: Chris Pearce

addon/ng2/blueprints/ng2/files/package.json

@@ -34,9 +34,9 @@
     "karma-jasmine": "^0.3.6",
     "protractor": "^3.0.0",
     "silent-error": "^1.0.0",
+    "ts-node": "^0.5.5",
     "tslint": "^3.3.0",
     "typescript": "^1.8.7",
-    "typings": "^0.6.6",
-    "ts-node": "^0.5.5"
+    "typings": "^0.6.6"
   }
 }