free up pin 0 and pin 1

the are used by serial rx and tx. seeing what would happen.
stop less from clashing with keys.
don't use pin 13.
find the pins that work.
add some case models.
update makefile for teensy2.
add missing ;
start the matrix for the teensy2.
read the right rows.
Finish configuring the columns.
finish configuring up the rows.