Logger configuration.
Bones __main__ now makes use of loggers, is "more" verbose.

- Use loggers instead of print
- Now tells us the server and port it connects to.
Move bones.bot's prints to log instead.
Modules should also be logged instead of printed.
Log module load exceptions.
Ignore logfiles and swap files.
Change formatstring for CTCP pong reply logging
Log privmsg events as debug.
Update config file

- Use log level INFO by default.
- Describe how to enable DEBUG logging
- Added optional line to disable INFO logging on the console.