Work continues on queues, added a Command class used to represent a
command pased to Workgroup.dispatcher, makes it easier to determine
the sender of the command (currentyly used only to identify which
worker requested an item from the Queue)
Work on Queue should be done, testing soon
Fixed a few bugs with queues, final commit before testing
Queue test complete, queues are working, found bug #1
Merge pull request #2 from nidzo732/queueImplementation

Queue implementation