Added info to 4 bit display code, and tested it out.

Paul,

I updated the 4 bit display code to add in the CW speed if the KEYER feature is selected and a paddle is plugged in. The WPM will be on line 4 over to the right of the signal strength.

I tested everything out and it seems to be fine.

I'll try to work on the beacon this weekend.

73

James