Prevent browser tab from freezing while submitting
Make ajax_form_submit use a success callback

...rather than hardcoding the success logic or forcing the AJAX
submission to be synchronous.
Add success callback for combined system form submit
Merge branch 'no-async-ajax' of https://github.com/drkitty/cyder into drkitty-no-async-ajax

Conflicts:
	media/js/views.js
Merge branch 'drkitty-no-async-ajax'