* Enhance user experience replying to a forum thread. An inline reply textarea
is added to page footers, "Quote" buttons on posts will quote the markdown
source and focus the reply textarea, and "Reply" buttons will put an
"@ mention" and focus the reply textarea. Users with scripts disabled will
still be sent to the regular reply page as before.
* Improve all pagers by adding a "QueryPlus" template function that merges the
page number with other current query parameters.
* Fix private profile picture avatars not displaying in your Notifications for
profile pics you're allowed to see.
* Add the Contact page where users can contact the site admins for feedback or
to report a problematic user, photo or message.
* Reports go into the admin Feedback table.
* Admin nav bar indicates number of unread feedbacks.
* Add "Report" button to profile pages, photo cards, and the top of Direct
Message threads.
Misc changes:
* Send emails out asynchronously for more responsive page loads.
