Added CAT control and improved LCD 20x4 display
Added Cat Control, improved LCD and Band Switch w/ Cat Control
Merge pull request #7 from pa3ang/master

Added CAT control and improved LCD 20x4 display
Manual Band Switching implemented

Press FUNCTION key > 2 seconds to change band. (Rebel Led will blink)
Merge pull request #8 from pa3ang/master

Manual Band Switching implemented
Added Freq Announce by SELECT > 2 seconds
Merge pull request #9 from pa3ang/master

Added Freq Announce by SELECT > 2 seconds