Zonestar P802M - Support for capacitive sensor and fan grill

Support for capacitive sensor 12mm and fan grill
Prevents the fall of the air jet fan down, but also put some in the heatsink kapton

the sensor
http://es.aliexpress.com/item/FREE-shipping-DC6-36V-1-5mm-Tubular-Capacitive-Proximity-Sensor-Switch-LJC12A3-H-Z-BX/32231527465.html

I put a scheme for connecting the sensor.

Repetier settings http://www.repetier.com/documentation/repetier-firmware/z-probing/

A Repetier updated to version 0.92.5 works best with autolevel http://forum.repet