feat(bootstrap): drop angular.js file name restrictions for autobind

The last script element in the dom is always us if the script that
contains angular is loaded synchronously.

For async loading manual bootstrap needs to be performed.

Close #621

src/angular-bootstrap.js

@@ -99,9 +99,7 @@
     // empty the cache to prevent mem leaks
     globalVars = {};
 
-    var config = angularJsConfig(document);
-
-    angularInit(config, document);
+    angularInit({autobind:true}, document);
   }
 
   if (window.addEventListener) {