Moving the completion function to the items handler
Moving saving an inbox item to the Items handler
Moving the save_action method to the Items handler
Moving the save_waiting_for method to the Items handler
Moving the save_project function to the Items handler
Moving save_reference method to Items handler
Fixing typo in null value name
Moving the save_list method to the Items controller
Moving the save_list_item function to the Items handler
Tweaking order for readability
Moving the create_parent function to the Items handler
Moving the view files for items to their handler's folder