Lots of improvements: ...

- Separated the queue label into a new panel.
  - Got rid of the now unnecessary AbstractMap base panel for maps.
  - Made the queue label handle overflow (put it in a scroll pane)
  - Show a message dialog for when now map can be found
  - Machine IDs can now be passed as command line arguments - this
    overrides the COMPUTERNAME env var.
  - Made the request/cancel methods synchronized instead of using a sync
    block inside those methods.  This seems to have improved the overall
reliability when mass requests are made, and hopefully fixes the
deadlock that the tutor-client occasionally had.

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.

Attempt to prevent NetBeans internal project configuration changes from ...

showing up in git.

Stupid NetBeans random project file changes.

Improved TutorClient. Huge refactor. Icon now read from classpath/jar.

Reworked threads, shutdown hook, and exit process to ensure requests are cancelled if student logs/out without cancelling manually.

Added .gitignore for build and dist

Converted buttons to labels on panels. Cleaned up 316 panel. Made server auto-detect which panel to use.

Renamed, and removed some things as a result of refactoring.

Done a whole bunch of stuff: ...

- Added service discovery.
 - Refactored the IMapPanel interface and LabelProcessor to make panels simpler.
 - Numbers now end up in queue label.

Nearly finished.  Need to do testing in labs.

Made the server threads deamon threads. No real need too but it is the correct thing to do.

Initial commit.