Nelson Chamberlain

Improvements to the barbershop simulation, primarily to add the WaitingRoomChairPod which was originally omitted from the simulation. Also a couple of other minor misc changes

Updated comments only

Added and/or updated javadocs only.

ConcX version 2.3 Is Released

Removed lots of System.out statements and cleaned up lots of other details noticed while updating Getting Started Guide. Release as version 2.3

Updated Flock to be quieter when executing. Instead of announcing how many ms it took to load it bird, it just announces that it loaded bird: <number>

BirdFile in ConcX was changed to an interface and the existing BirdFile was changed to BirdFileImpl. BirdInputFile and BirdOutputFile were changed to be part of the BirdFileImpl hierarchy. The updated test files incorporated these changes.

Added the ability to delete all currently loaded birds and then add the first (default) bird back. Also, when loading birds from a file, added the ability to overwrite the first bird if it is the only bird and if its type is "None" or "Not Found". This prevents the ugly orphan first bird situation and helps mentally when loading 5 birds to see only birds 1-5 instead of 1-6 with the first not used.