board: shifted 74HC chips down for clearance.
board: tweaks; USB bumped one mil, power LED moved.
library, board: TFT outline as reference, not silk-screen.
schematics, board: show grid as lines, not dots.
library: PDA6502-LOGO
board: PDA6502-LOGO next to 6502.
board: PDA6502-LOGO on bottom also; near USB connector.
schematics/README.md formatting.
schematics, board: labelling WIP, bigger caps.