Cleanup in IRC stuff
Use a single CMakeLists for both the lib and cobalt itself. This way less hassle + cobalt binary is built into build/ and not build/src/
- Config: vars with "_" are broken into nested tags. Much better organized this way
- Channels are now managed with more elaborate XML, supports multiple channels with join passwords
- XML files now have configurable save indenting (still defaults to tabs but can be set to spaces). Not sure why I did this, heh.