KFD-AVR v1.5.1

Small modification from duggerd's program that allows the use of any serial port in the system rather than just the KFDtool hardware.

Note, when you open the software you will probably get a "timeout waiting for data" error - this is normal. The software by default will probe the serial port it is connected to for hardware info, and since there probably isn't an interface on the first COM port of your system, there will be no reply.