Added a FixtureStatus enum to the Fixture domain object.  Updated
the fixture model to reference it.  Updated the add fixture command
to properly set it.  Fixed broken tests.

AFDP-99
Got most of the functional tests working.  The last remaining failing
test will be resolved when server support is added and the javascript
stubbed-in behavior is removed.

AFDP-99
Removed the timer-based test "event" that would update the status
of new fixtures.

All functional tests pass now.

AFDP-99
Defined API for notification, notification center, and listener.

AFDP-100
Updated springframework.version to 4.0.0.M1 and added spring-websocket

AFDP-100