Add XMPP Parser (From plugins.)

Add a sendWhois command to the parser.

Expose getChannelClients in ClientInfo.

Delete all the ant stuff.

Make jacoco/coveralls aggregate reports.

Subprojects need to gather but not report.

Add jacoco and coveralls.

Build file improvements.

Switch interface to use varargs.

Add standalone handlers for NickInUse and PingFailure.

2015!

Reverse the modes comparator, because Dataforce.

Add a method to get a comparator for important modes.

Remove getMap from parser interface.

Doesn't really make any sense at all, and isn't used anywhere to
my knowledge.

Add Process464 test.

Make IRCProcessor implement handles().

Seems a bit odd for each implementation to define a method that
*always* returns a static String[] when we can just pass that
up to the base class.

Add tests for process001

Tidy up callbacks some more.

We now pass parser/date in properly, no need to drop these and
re-add them.

Don't expose the CallbackManager to processors.

Just add a utility method to get the callback proxy instead.

Think this is a bit nicer, and is one less thing to have to change
if we switch to events.

Remove unused methods.