fix wire angle on supply layer, increment 1.2b
remove random polygon on supply layer
couple silk screen fixes
Change SMPS source to mosfet input, diode on this

rail to 27V zener
set L2 part
consolidate V-mot bulk caps to 1 470uF, move

thermistor connectors, move PS-ON connector, add jumper to disable SMPS,
adjust bulk cap placement on V-heat, misc layout and silk improvements
Merge branch 'master' of https://github.com/ultimachine/RAMBo into pin_fix