Move discussion to right, link to latest post instead of topic
Existing topics will not have a last_post_id set but it will be saved whenever a new reply is created
Merge pull request #37 from austingulati/issue32

Forum Quickfixes
Document links now use descriptions if they exist
temporary style fixes for provost
changes for provost
more cancan and fix videos not found
Merge branch 'urgent'

Conflicts:
	app/assets/stylesheets/guest.scss
	app/views/courses/show.html.erb
	app/views/guest/landing.html.erb
	app/views/layouts/home.html.erb