Issue #2346523 by djdevin, saurabh.tripathi.cs: User results are not deleted after deleting user
Issue #2386103 by djdevin: Decouple quiz result/scoring
Issue #2641516 by djdevin: Cloning a quiz with pages broken
Hide node links on question display.
Issue #2633248 by adamelleston: 'clone' is a reserved keyword introduced in PHP version 5.0 and cannot be invoked as a function
Issue #2627576 by djdevin: Score isn't correct when multichoice questions have varying degrees of weight
Issue #2539262 by lachezar.valchev: Trying to get property of non-object in QuizQuestion->getNodeProperties() line 194
Issue #2581237 by djdevin: Document hook_quiz_feedback_labels_alter
Issue #2589811: Call to undefined function quiz_take()
Issue #2537128 by snehi: "Requirements" in README file still list "Drupal 6.x" as a requirement in D7
Issue #2592699: use n.nid for checking ownership
Issue #2592699 by GeduR: Undefined property: stdClass::$uid in QuizQuestion->viewCanRevealCorrect()
Issue #2592105 by djdevin, captainack: Refactor _quiz_question_get_instance
Issue #2617044 by meramo, djdevin: Compatibility with MySQL 5.7.x
Fixed stray xdebug_break() on an error condition.
Issue #2594511 by djdevin: WSOD when trying to take quiz or view quiz results
Issue #2470103 by djdevin, FreekVR: Refactor scoring system to use Entity and Question API
Fixed a strict warning in scale getAnsweringFormValidate.
Issue #2588777 by captainack: PDOException when setting quiz form settings if passfail is disabled
Fixed bad answer export
Issue #2578549 by mpv: Undefined properties allow_jumping and time_limit when usin panel pane
Issue #2576419 by RayCascella: Question count should exclude non gradable questions
Prevent stray question number from showing up.
Issue #2573615 by djdevin: On "repeat until correct" the next question button displays but it goes backwards
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