Fixes for v1.1 PCB
- Fix J5 being upside down (#5 (closed))
- Add ground-side switching for temperature sensors (#6 (closed))
- Increase Micropack connector hole sizes to make assembly easier when re-using old parts
- Move all IGN3 inputs & outputs to after polyfuse
- Add jumper to connect aspirator fan to IGN3 (not tested, use at own risk!)
- Rename PCB and Gerber ZIP files to be less generic
- Add initial assembly instructions
Closes #5 (closed), #6 (closed)