Make QueryCommandParsers use PrivateChat.

Add an explicit dependency on slf4j-api

Remove swing-specific events.

Tidy how CommandParsers are created.

Instead of passing them in to the FrameContainer ctor, create
them afterwards.

This means the reference in FrameContainer can't be final but
removes the horrible setOwner() kludge that was previously in
CommandParser, and cuts down the deps needed to pass in to the
FrameContainer ctor.

Move shutdown handling into LifecycleController.

Ignore CancellationException in the LoggingExecutorServices

Fix LSES blocking after a task is executed.

Add config + identity to {GroupChat,Connection}PrefsRequestedEvent

Add a logging scheduled executor service.

Add an optional reason to ChannelUserAwayEvent.

Fix FrameContainerComparator.

Fix almost all remaining FrameContainer refs.

Fix a bunch more FrameContainer references.

Add a who type method to GroupChat.

Weaken some things to WindowModel.

Make CommandParser use WindowModel.

Make UIs use WindowModel more.

Make WindowManager use WindowModel.

Change some FrameContainers to WindowModels.

Make Connection return a WindowModel.

Start to move FrameContainers behind an iface so they can be
pulled out.

For now, just cast back when needed.

Make Chat return a WindowModel.

Switch QuerySelfExternal{Action,Message} to events.

Start to move FrameContainers behind an iface so they can be
pulled out.

For now, just cast back when needed.