Topics management
remove pg
Category subscription model and migration
Fix model creation for CategorySubscription
Forum new post notification process
Add start time of milestone.
Make sure an end date is specified for all milestones.
Allow us to specify that a particular template be rendered.
Remove "Back to Top", fix last milestone scrolling beyond page.
Merge branch 'forum-lessonbin' of github.com:fuzzie360/coursemology.org into forum-lessonbin
Never blindly copy and paste. Seriously.
Merge branch 'forum-lessonbin' of github.com:fuzzie360/coursemology.org into forum-lessonbin
Merge branch 'forum-lessonbin' of git://github.com/fuzzie360/coursemology.org into dev/raymoond_dev

Conflicts:
	Gemfile.lock
Unread post query rewritten
Rewrite .select query for unread in individual post
Merge branch 'forum' of git://github.com/fuzzie360/coursemology.org into dev/raymoond_dev
typo in hidden icon
Save some queries in checking posts read status in a topic
remove pg
Merge branch 'forum-temp' into forum

Conflicts:
	db/schema.rb