- rows are now 0..6, cols now 0..D (matching the pics Fredrik posted of
his first flippable PCB)
- either rows or columns can now be the driving pins. the option is in
".../keyboard/.../options.h"
- linked lists need to be rewritten to be more memory efficient
- all kbfun functions are now of type `(void kbfun_...(void))`, and the
arguments they need are passed via a group of global `main_arg_...`
variables (and other `main_...` variables)
Ben Blazak