Issue #2374329 by djdevin: Write tests for random questions.
Issue #2374663 by idebr: Fixed Make quiz form translatable.
Added tests for quizzes with resume off.
Issue #2374331 by djdevin: Write tests for 4.x -> 5.x upgrade.
Follow up
Issue #2374297 by thehong: Rename QUESTION_* to QUIZ_QUESTION_*.
Issue #2288689 by jhedstrom, idebr: Don't provide custom display settings for 'Question' view mode by default
Removed legacy constant.
Question bank view -> link label to question page.
Fix QuizRandomTestCase::testRandomQuestions().
Test upgrade later.
Bump
Fix devel generating page.
Fix devel generating page.
Fix quiz_stats.
Merge branch 'merge-5x' into 7.x-6.x

* merge-5x:
  Fix devel generating page.
  Fix devel generating page.
  Bump
  Test upgrade later.
  Fix QuizRandomTestCase::testRandomQuestions().
  Question bank view -> link label to question page.
  Removed legacy constant.
  Issue #2288689 by jhedstrom, idebr: Don't provide custom display settings for 'Question' view mode by default
  Issue #2374297 by thehong: Rename QUESTION_* to QUIZ_QUESTION_*.
  Follow up
  Issue #2374331 by djdevin: Write tests for 4.x -> 5.x upgrade.
  Added tests for quizzes with resume off.
  Issue #2374663 by idebr: Fixed Make quiz form translatable.
  Issue #2374329 by djdevin: Write tests for random questions.