Highlight username in tavernchat
Add relative dates to chat
Remove timestamp
Merge develop and add functionality to party chat
Keep relative times updated every 60 seconds
Cleanup model code
Merge remote-tracking branch 'switz/chat' into develop

Conflicts:
	src/app/helpers.coffee
full username test in chat (_user.profile.name only part of the
equation), and min-height: 60px - was getting stacked longtext issue
chat functions better with just some padding rather than hight &
line-height (see multi-line chats with the large line-height)