MDL-16263 A way for students to flag/bookmark, particular questions during a quiz attempt for later review.

This is an initial implementation that is now at a working state, but with a few things left to do. It seemed like a good idea to commit it before leaving work on Friday night.

mod/quiz/lib.php

@@ -1257,6 +1257,7 @@ function quiz_get_extra_capabilities() {
         'moodle/question:movemine',
         'moodle/question:moveall',
         'moodle/question:managecategory',
+        'moodle/question:flag',
     );
 }