Yesod 1.2 migration
Wiki/Discussion PiP partial conversion
Merge branch 'master' into pip

Conflicts:
	Application.hs
	Foundation.hs
	Handler/Application.hs
	Handler/Committee.hs
	Widgets/Sidebar.hs
	templates/auth.hamlet
	templates/committee.hamlet
	templates/homepage.hamlet
markdown link rewrites; some permissions progress

Closes GH-159.
fixed clarity on footnotes needing blank line separation
Ticket filtering
Committing omittted file from last commit...
Sorting
Viewer Widget
PiP permissions, mostly complete
Bugfix

Closes GH-158
Bugfix
Bugfixes

Closes GH-176
Fixed /messages (formerly a TODO)

Closes GH-173
Wiki permissions edit form
Updating CSS to display tables correctly.