Removed utils not central to beerbot core.

These will be in the beerbot-modules repo:
https://github.com/danielbush/beerbot-modules
Removed world from core.

It's still referenced by the bot code here, but it defaults to nil.
More on this to come...

See the Tracker module in https://github.com/danielbush/beerbot-modules
for an example of tracking.
Removed more-filter.

This will be reincarnated in the Facts module
https://github.com/danielbush/beerbot-modules
at some point... I promise.
Removing more references to world.
World is replaced by a config variable.
Made Config a specialised hash with additional config parameters.

We now provide the scheduler, bot instance and an out queue for
actively sending messages.
Config is injectable into bot modules and other things.
Removed reload!.

Man, there goes our claim to fame.
Maybe just use 'load' from the repl?
Bot modules can now receive the config by providing a 'config' method.
Tidying up.
First stab at updating README for 0.2.x .
Big rename: BeerBot -> beerbot.
Moved DataFile - it's now in botmodules.

See https://github.com/danielbush/beerbot-modules .
Updated README.
Tidying up.
Added suppress echo for repl; fixed active_thread.
Updated gitignore.
Added #init method for bot modules.
Updated README.
Added CHANGELOG.
Fixed logic in irc connection.