Update USB schematic, BOM, schematic .pdf.

Updated microcontroller USB connector.

Moved silkscreen writing block.
Ready (again) for review for next PCB build.

Board and Gerber files as released to Sunstone/Eagle for manufacturin…

…g on May 7, 2013.

main_board_20130502_1336.zip Gerbers and README released to Sunstone …

…for fabrication

gig-e PCBs ordered

gig-e PCBs ordered

rs232 front-end module for DE2-115, PCBs ordered 9 January 2013