add htmldiff, output preview of attachment changes, only store changed attributes instead of entire hash
show warning when an edit is older than the last content update
format date, and title on edit.index page
restyle the edit modal so it can fit more content
allow users to add/edit youtube trailer
show message when there aren't any edits, add comment about attachmentProps
switch over to using full serializers for versions, do a diff of cover_image, poster_image, and youtube_video_id
show progress message when approving, or rejecting an edit
Merge pull request #298 from vevix/wikify-2

Wiki Part 2!