Fix AMD editors that must have backbone forms

Without this, there's a race condition

This is how the AMD fixes were originally intended as of https://github.com/powmedia/backbone-forms/pull/89/files
But since this build-template file wasn't properly setup subsequent builds destroyed the changes in the distribution.amd/editors folder

scripts/build-templates/simple.amd.js

@@ -1,4 +1,4 @@
-define(['jquery', 'underscore', 'backbone'], function($, _, Backbone) {
+define(['jquery', 'underscore', 'backbone', 'backbone-forms'], function($, _, Backbone) {
 
   {{body}}