#20 ServerGUIEngine method of GUI updating

[kristi]

Currently the ServerGUIEngine uses a "hack" of sorts in
order to display the GUI.

It uses the client map panels, but doesn't transmit the
Environment over TCPIP. To do this the
ServerGUIEngine manually sets the ClientGUIEngine's
environment object to the current environment.

Ideally, there would be some way to separate the
dependance of the ServerGUIEngine and the
ClientGUIEngine, preferrably without having to write
separate map classes for each.