Updating Gemfile.lock with new dependencies
Updating read me with dependencies
Using Backbone`s `listenTo` method for listening to view events on CRUD box
Adjusting method formatting
There is no need to get error from an alert element inside the form when a validation error occurs.

Validation error message displayed on the feedback view should be configured using `data-failed-message` attribute instead.
Improving LoadableSelectableView code
Changing `created` method name to `success` since CRUDFormView does handles both create and update actions
Hiding the loading overlay instead of removing the element in order to not lose animation and follow the proper interface