R1:431e2bee6e7c

First (rough) pass at campfire protocol adapter for bot.

Summary:
Decided the best approach for refactoring the message/command stuff would be to actually start implementing the campfire adapter to get a better idea of what the abstractions should look like. It feels awkward and unwieldy trying to maintain the irc command interface (notice the message instantiation in the `processReadBuffer()` method. However, i'm still not clear what the best approach is without requiring a re-write of nearly all the…