Merge pull request #4 from it-fm/master

Fix banner update URL (update_profile_background_image is deprecated)

Author: tykarol

lib/twitter.js

@@ -26,7 +26,7 @@ var required_for_user_auth = required_for_app_auth.concat([
 var FORMDATA_PATHS = [
   'media/upload',
   'account/update_profile_image',
-  'account/update_profile_background_image',
+  'account/update_profile_banner',
 ];
 
 var JSONPAYLOAD_PATHS = [