Use license object instead of licenses array

Gruntfile.js

@@ -30,7 +30,7 @@ module.exports = function (grunt) {
     banner: '/*!\n' +
             ' * Bootstrap v<%= pkg.version %> (<%= pkg.homepage %>)\n' +
             ' * Copyright 2011-<%= grunt.template.today("yyyy") %> <%= pkg.author %>\n' +
-            ' * Licensed under <%= _.pluck(pkg.licenses, "type") %> (<%= _.pluck(pkg.licenses, "url") %>)\n' +
+            ' * Licensed under <%= pkg.license.type %> (<%= pkg.license.url %>)\n' +
             ' */\n',
     jqueryCheck: 'if (typeof jQuery === \'undefined\') { throw new Error(\'Bootstrap\\\'s JavaScript requires jQuery\') }\n\n',
 

package.json

@@ -20,12 +20,10 @@
   "bugs": {
     "url": "https://github.com/twbs/bootstrap/issues"
   },
-  "licenses": [
-    {
+  "license": {
     "type": "MIT",
     "url": "https://github.com/twbs/bootstrap/blob/master/LICENSE"
-    }
-  ],
+  },
   "devDependencies": {
     "browserstack-runner": "~0.1.0",
     "btoa": "~1.1.1",