Use gtk.keysyms for keyboard key constants.

Remove width_request and height_request from chat_window, as they render
the window non-resizable.

Fix multi-select logic, for chatting to several people.
Change ChatClient.selected_name to set selected_names

Change AddToUser to AddToUsers. Pass a list of usernames instead of one.
The GTK multi-select part isn't working yet, but I think the protocol is.

Add Henrik Thostrup Jensen's amptypes.py, with his license added inline.

Add user "c"

Add MIT license file.

Remove commented __init__ methods on ChatProtocol and ChatClientProtocol

Remove unused chat_client arg to ChatClientFactor.__init__

Remove unused ChatClient.factory instance variable

If ChatClient.connect_to_server is called when we already have a protocol,
call protocol.transport.loseConnection to cleanup the old connection.

Have Login raise a LoginError on failure.
Rename chatclient.login_failure to eb_login for consistency.
Have eb_login display the value of error.getErrorMessage()
Do not allow the same username to be logged in twice.

Make Login return a boolean indicating success or failure, rather than
calling back with a separate LoggedIn message.