Add package.js in Grunt tasks.

Gruntfile.js

@@ -63,7 +63,7 @@ module.exports = function (grunt) {
         options: {
           jshintrc: 'grunt/.jshintrc'
         },
-        src: ['Gruntfile.js', 'grunt/*.js']
+        src: ['Gruntfile.js', 'package.js', 'grunt/*.js']
       },
       core: {
         src: 'js/*.js'

package.js

@@ -1,5 +1,8 @@
 // package metadata file for Meteor.js
 
+/* jshint strict:false */
+/* global Package:true */
+
 Package.describe({
   name: 'twbs:bootstrap',  // http://atmospherejs.com/twbs/bootstrap
   summary: 'The most popular front-end framework for developing responsive, mobile first projects on the web.',