Merge pull request #236 from greboid/tidying

Camel case ServerInviteReceivedEvent
Merge pull request #237 from greboid/awaymessages

Fix Away Messages.
Merge pull request #238 from greboid/awaymessages

Switch to Executors from TimerTasks.
Change to Connection in ExternalCommands.
Merge pull request #239 from csmith/master

Change to Connection in ExternalCommands.
Remove some more Server useages.
Merge pull request #241 from csmith/master

Remove some more Server useages.
Merge pull request #240 from greboid/awaymessages

Add User + GroupChatUser objects.
Remove more usages of Server.

This adds a sendLine method to Connection, which is a bit icky,
but is useful when the end-user is supplying lines to pass
directly to the underlying connection.
Merge pull request #242 from csmith/master

Remove more usages of Server.
Use forEach where possible.
Merge pull request #243 from greboid/awaymessages

Add a UserFactory and an implementation.
Merge pull request #244 from csmith/master

Use forEach where possible.
Unused import.
Superfluous semi-colon.
Merge pull request #245 from csmith/master

Really minor tidying.
Remove moved classes.

Stab bits of ignored tests that no longer work.
Merge pull request #246 from csmith/master

Remove moved classes.
Colour events.
Merge pull request #247 from greboid/awaymessages

Switch events to USer.