Issue #2291279: refactoring many DB writes and improving Quiz global and user defaults
Issue #2301309 by djdevin, celticremark: fixed slow grading and random question quiz behavior by incorrect usage of quiz_build_question_list()
Issue #2313769 by csakiistvan: Fixed Commented function in module file.
Issue #2314093: fixed update from alpha1
Removed old actions support in favor of Rules