Added test for question numbering.
Fixed cannot delete long answer questions.
Issue #2487508 by djdevin: Question numbering
Issue #2482983 by strategicweb, djdevin: How to create a quiz max score greater than 99
Issue #2390573 by djdevin: Updating a question does not update the quiz to use the latest revision of the question
Issue #2485093 by djdevin: Clarify/correct "Leave Blank" button and "Allow Skipping" functionality
Removed unnecessary db_delete because we have an entity_delete_multiple above.
Issue #2484743 by uladzimir.karol: Replace 'und' with the constant LANGUAGE_NONE for multi language site in quiz
Issue #2473357 by djdevin: Leaving TF question blank registers as "false" on reports page
Issue #2470253 by djdevin: saving a quiz with attempts creates revisions even if auto-revisioning is not set
Issue #2470223 by djdevin: quiz not yet open displays "quiz is closed"
Always try to get scores from event
Issue #2461091 by djdevin: Scale update hook has some issues
Issue #2444863 by Jamesap: Quiz 4beta3 update dependencies
Remove console log
Issue #2442417 by djdevin: Update answers rather than deleting them
Issue #2387753 by aleix: errors in function quiz_validate with strings quiz_open and quiz_close
Cleanup truefalse. Convert to db_merge().
Issue #2413821: dont delete quiz result answers
Issue #2413821 by djdevin, Sherif Darwish, zuernBernhard: PDOException when deleting multiple choice question
Issue #2418603: revert tab changes
Issue #2442283 by djdevin: QuizResultController->load doesn't take conditions into account
Issue #2424169 by ovidenov: Configuration field 'set pass/fail option' only disables the pass option
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