Adding title parameter to updateTitle in private chat controller to prepare for moving functionality to chat window instead.
Copying and adapting title logic into chat window
Adding null check on controller
Making logoff and away update title with new method
Switching the controller to use the chat window to set the correct title
Preparing controller for setting both title and subtitle
Switching to set the title directly on the actionbar
Activating the subtitle
Using a more generic name for the method to set title and subtitle
Setting the away message in the subtitle
Using a more generic name for the method to set title and subtitle on the main chat as well
Updating tests to check the new style of title and subtitle in private chats
The away message of another user, if set, is shown as a subtitle in the ActionBar of the private chat.