scaffolding: Bump version to 0.28.0.

grunt-init-project/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ambers/grunt-init-amber-project",
-  "version": "0.27.0",
+  "version": "0.28.0",
   "description": "grunt-init template for amber project",
   "main": "template.js",
   "scripts": {