chore(gruntfile): remove changelog option, add repository to package.json instead

Gruntfile.js

@@ -50,12 +50,6 @@ module.exports = function(grunt) {
       }
     },
 
-    changelog: {
-      options: {
-        repository: 'https://github.com/driftyco/ionic'
-      }
-    },
-
     version: {
       dist: {
         dest: 'dist/version.json'

package.json

@@ -3,6 +3,9 @@
   "private": false,
   "version": "0.9.25-alpha",
   "codename": "quitzal",
+  "repository": {
+    "url": "git://github.com/driftyco/ionic.git"
+  },
   "devDependencies": {
     "grunt": "~0.4.1",
     "grunt-bump": "0.0.13",