Code to process UI input messages and verify them with checksum.
History
Some changes to the print statements
2015-02-14, by mzling [Sat, 14 Feb 2015 00:36:19 +0000] rev 1
Some changes to the print statements
UserInterface code--correct checksum behavior and reformatted
2015-02-04, by mzling [Wed, 04 Feb 2015 23:53:56 +0000] rev 0
UserInterface code--correct checksum behavior and reformatted