Merge pull request #16379 from twbs/bower-json

More bower.json fixes

bower.json

 {
   "name": "bootstrap",
   "description": "The most popular front-end framework for developing responsive, mobile first projects on the web.",
-  "version": "3.3.4",
   "keywords": [
     "css",
     "js",
@@ -13,6 +12,7 @@
     "web"
   ],
   "homepage": "http://getbootstrap.com",
+  "license": "MIT",
   "moduleType": "globals",
   "main": [
     "less/bootstrap.less",