Initial import

Rev1: A micro-USB powered prototype.
- Ergonomic problem: instinct is to use it upside down
- Surface mount micro USB sucks to solder
- Programming ribbon cable presses up against reset button
- Pin silkscreens often cut off

Rev2:
- Reoriented text and components to be used with chip facing away
- Switched to DC barrel connector for power
- Rearranged components to separate programming port, arranged things
better
- Design now uses entirely through-hole components
- Tweaked pin silk screens