receiver board: replaced TXB0108 level shifter with a 74HCT541
receiver board: changed value of IP4776CZ38 ESD protection IC to TPD12S520
receiver board: merged changes from Jet:

 * added "power" and "hotplug" LED labels
 * added LED polarity symbols
 * moved C7/C8 labels off of vias
 * moved vias from under SCL and RST labels
 * moved vias from under R13/14/15 labels
 * added + symbols on polarised caps C7-14
 * added R16: 10K between VCC_3V3 and TPD12S520 LV_SUPPLY
 * increased drill size for ADV7611 ground pad from 12mil to 13mil
 * fixed schematic net labels

also changed:

 * edited pin header package to remove the "1" and "16" labels
 * added channel number labels to output channel header
 * changed all text to same vector font
 * added OSHW logo
receiver board: added BOM created by Jet after the following minor changes:

     * removed C20
     * changed C35 from 0603 to 0402
     * removed power jack
     * changed 74HCT245 to 74HCT541
     * C1, C4, etc.: changed Farnell part number to a X7R part