fixing issue where having emote multiple times in same message would cause problems. Now keeping track of which emotes we've replaced/formatted
first pass on mention (@) functionality for bunker.  Using static list of nicks for now
refactoring room in to service, adding resolve for room, fixing some small things: css on login page, regex used to replace mentions
Merge pull request #5 from DigitalZebra/master

multiple (same) emote fix, along with first pass on mention functionality.