P28 and P29 reworked, exposed unused SGPIO signals, moved some CPLD JTAG signals to P28
forgot to save schematic
moved GCK1 test point
initial firmware support for HackRF One
changed some capacitor values to improve low frequency performance
added resistors to decrease clock signal overshoot
exposed GND through mounting holes
grounded pushbutton mechanical support
fixed GP_CLKIN passives
adjusted clock generator output drive strength
another clock strength adjustment
improved REF_IN passives
improved XTAL2 (MAX2837 reference clock) passives
nudged pushbuttons
nudged USB conector
lengthened USB TVS pads
resized USB connector holes
changed to SMT RTC crystal.  populating for now.  might not in the future.
clippable GND test point
optional passives between USB shield and GND