Allowed users to subscribe to a post to get inbox notifications of new top-level comments.
Changed new comment notification color scheme.
Removed userpages from wikifeed, removed deletions and repeats.
Working on allowing subscriptions to comments.
Reverting to just link subscription.
Removed old code.
Comment subscription in a workable state.  Needs more testing, but seems to be working.
Subscriptions for posts and comments working.  Added tooltips explaining subscription.
Fix user overview so that comments made in discussion are visible.
Merge remote-tracking branch 'PotatoDumplings/subscription' into subscriptions

Conflicts:
	r2/r2/public/static/main.js
Merge branch 'master' into subscriptions
Tidy up layout of subscribe link
Merge branch 'subscription'
Merge branch 'fixdiscussionoverview'
Gave subscription temporary icons.
Merge remote-tracking branch 'PotatoDumplings/master' into subscriptions

Conflicts:
	r2/r2/public/static/main.css
Fixed icon for subscription.
Merge remote-tracking branch 'PotatoDumplings/subscription' into subscriptions

Conflicts:
	r2/r2/public/static/main.css
	r2/r2/templates/comment.html
	r2/r2/templates/link.html
Adjust shade of grey in subscribe icon to match other icons
New subscribe icon