Should probably improve this to only raise an event when the
values change, but will do for now.

Document and fix Channel.getDefault

Add an injectable wrapper around System.

Not 100% sure this is a good idea though.

Add getAwayState to User.

Add mode querying to Connection.

Add kick to GroupChat + udpate NickCommand.

More GroupChatUser changes.

Initial pass at an UnreadStatusManager.

Needs to allow configuring of the colours, and provide events
for notifying the UI.

Tidy SetNickColour, fix unit test.

Switch SetNickColour to use DisplayProperties

Fix Topic unit test.

Make more things use GroupChatUser.

Use GroupChat in Connection.getChannels().

  - Also by AutoValue Topic
  - Also make getUser in Topic Optional

Fix the channel message sink actually doing common channels...
I guess we're not really using that one.

Use GroupChat in Connection.getChannel().

Force a single global AutoCommand.

Handle GroupChatUser + User in processNotificationArg

Make AutoCommand use AutoValue.

Add package private constructors for AutoValues.

More GroupChatUsers.

Add a remove method ti DisplayPropertyMap.

Store parser objects in ChannelClient and Client