v 0.1.5
	- Added QuitCommand, PartCommand, WelcomeCommand, NamesReply,
	  NamesEndReply.
	- Added Member class.
	- Added 'why' parameter to addMember and removeMember.
	- Fixed NickCommand so that it recognizes changed to other's nicks.
v 0.1.1
	- Fixed some javadoc formatting.
v 0.1
	- Initial release.
