fixed polarity of capacitors on schematic

stupid mistake... did the schematic with unpolarized symbols and when i
did the layout it happened to end up with the wrong orientation.
BOM as a haskell source file
swapped red and blue

only updating the IR for now, the xbee channel order/frame format isn't
really specified yet anyway
more pcb revisions

moved some labels around, removed thermal relief on non-pin ground
connection vias