provide link to exercise edit page to editors
forward root to maps list
store edit keys as a hash
show tinymce editor for exercises
use protocol agnostic jquery reference
add one exercise at at ime
add highlighting when new exercises are added
refactor research form
add distractor forms, auto hide and show distractors based on qtype
remove legacy qid
fix exercise edit required fields and distractor hiding
make remaining question div easier to read
remove reference to removed field