quiz editing: MDL-20263 When adding a new question directly to the qu…

…iz, highlight it in the question bank.

mod/quiz/edit.php

@@ -213,6 +213,7 @@ function module_specific_controls($totalnumber, $recurse, $category, $cmid, $cmo
     quiz_add_quiz_question($addquestion, $quiz, $addonpage);
     quiz_update_sumgrades($quiz);
     quiz_delete_previews($quiz);
+    $thispageurl->param('lastchanged', $addquestion);
     redirect($thispageurl);
 }