Topics management
remove pg
Category subscription model and migration
Fix model creation for CategorySubscription
Forum new post notification process
Add text label to upload button.
Revert "Update to Bootstrap 2.3.2."

This reverts commit c9303995cc02e3c5fd089b8bf4bcb3298c6669ca.
Allow users to mark the entire workbin as read.
Merge branch 'forum-lessonbin' of github.com:fuzzie360/coursemology.org into forum-lessonbin
Add transparency effect to sticky headers.
Merge branch 'forum-lessonbin' of github.com:fuzzie360/coursemology.org into forum-lessonbin
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