Can click on autocomplete results to select (closes #86)
Don't show websocket closed message when logging in

Closes #53
Closes #48
Fix race condition where websocket closed error is shown

re: #53
Show loading spinner when page is loading
Full page refreshes when navigating if websocket closed

Closes #87
Larger default textarea for new threads
Underline links on hover in index subforum tiles
Better subscription reason markup and style
Parse and style @ mentions in posts

Closes #118