Fixed #199.
Removed session description from the create session dialog box.
Puts a lock on disabled join buttons, and detects full sessions and describes them appropriately.
Added chat message accumulation to server events.
Accumulating chat messages with a rolling limit, using the new ServerChatList.
Chat message history is fully in, per #191.
Changed how branding works - puts event title at the top and an unhangout credit at the bottom.
Fixed a small bug with blur/focus retitling.
Added empty slots with a decent visual effect on them.
Added optional blur disabling, useful for high volume events like edcamp.
Changed to always show the empty slots.
Minor tweaks to tooltip name placement.
Circular structure fix.
Fix how hangout header looks in firefox.
Merge pull request #201 from drewww/ui-tweaks

Ui tweaks