API Let update interval of tinymce be changed or disabled

This is necessary because some optional plugins do not work with auto-update and it's necessary in some cases to disable it.
The problem here is if you disable this hack, the original bugs will reappear. I don't think this should be a configurable option if it breaks the CMS.

My only suggestion really is to look for ways of fixing these bugs in a way that doesn't trigger save... or implementing the spellchecker in a way that doesn't break on save?