v1.3.1 Changelog

[maciejprzybysz]

Validation errors fixed #100
USB ID line connected to ESD diode #101
ETH termination resistors designators fixed #99
Board outline fixed #102
3D models moved from Mechanical1 to Mechanical13 #102
Top overlay changed not to overlap SMD pads #103
VIAs tenting added (rule) #104
FTG4 footprint fixed
Minor layout changes
PCB synchronized with SCH, component links updated
Revision number changed to v1.3.1 (on sch, pcb & panel)