Clean up repository 

Just cleaned up unneeded files, cleaned up Readme.md, added License.md, that sort of stuff.

Also, don't forget to register add BukkitIRCd to PluginMetrics at [MCStats.org](http://mcstats.org/plugin/BukkitIRCd).

Note: Not exactly sure why my name shows up on the signature at MCStats.org.