Added some additional testing classes.

Whole bunch of stuff: ...

- Refactored the map panels to separate the queue label into its own panel.
 - Made queue label overflow without resizing the panels that contain it.
 - Fixed some threading issues by making expanding a couple of synchronized blocks into full method syncs.
 - Added some more constants for things (version number, exit codes).
 - Show message dialog when the server can't be found.
 - Added a test class that causes a message flood for testing threading and queue overflow.

Added a simple test that simulates all users in a lab requesting help at ...

once.  Tests how the UI responds to overflow in the queue label, and the
general responsiveness and reliability of the system.