Fix Text display to show team chat.

[Berg53]

With the new system you press ctrl/enter to start team chat but when you send too game you cant tell if its team or normal chat please put a Allies title to the chat display to all team memeber so we know its not in plane view.
Also is it possible to use the old method of using . to initiate team chat.

[alfanak]

And you can't cancel chat (using escape key for example)
if you write a message and you want to cancel it, you have to erase it and then press Enter!

[past-due]

And you can't cancel chat (using escape key for example)
if you write a message and you want to cancel it, you have to erase it and then press Enter!

This particular issue should now be fixed (for in-game chat) by 809dd2a

[Prime-Kosh]

When you hit team chat it shows a yellow color, normal chat is white, in the ctrl` history it shows yellow there as well, and ` show white text so it seems that you just need to color the text yellow when it prints it in normal chat to follow the pattern.