Message parsing fix. Some Messages don't end with "... :params"
Added a plugin skeleton. Next step is to implement loadable module
support and then implement modules.

Also changed the regular expression for parsing messages. Used this one
in an older IRC bot project (ruby) some time before.
Added loadable module support! (For OS X)

The next commit will make this change generic for UNIXes. Need to push
it onto the server first to check it out on some linux machine.