stepper controller carrier v1.3

This is a pololu stepper controller carrier. It has connectors to main board via 10pin, 6pin and 0.1" header/screw terminal or 3.5mm screw terminal connections. Endstop connections via 3pin 0.1" header, rj45 or 4pin cdrom-style connector. Motor connections via 0.1", 3.5mm, 0.156", 0.2" terminal options (screwterminal or molex). Microstepping selection via jumpers for full, half, quarter, eighth and sixteenth steps. Should be a drop in replacement for MBI stepper controller to provide micros