Add Plastic Case design for HackRF One
increased allowed MAX2837 frequency range from 2300-2700 MHz to 2150-2750 MHz based on experimentation
reduced minimum tuning frequency from 5 MHz to 0 Hz
increased maximum tuning frequency from 6800 MHz to 7250 MHz
high-side injection and graduated IF for tuning from 0 to 2150 MHz
removed check for too low tuning frequency now that we permit tuning down to 0 Hz
divided tuning frequencies above 2750 MHz into three ranges with graduated IF for spur avoidance
fixed bug with high-side injection tuning
reverted to low-side injection until/unless inverted spectrum is resolved
Merge pull request #108 from scateu/master

Add Plastic Case design for HackRF One
Add HackRF One Plastic Case design with edge cut-outs for buttons
Merge pull request #110 from scateu/master

Add HackRF One Plastic Case design with edge cut-outs for buttons
fixed USB port position on end plate
updated udev rules for HackRF One and NXP DFU
fixed tuning bug
stale comment
firmware support for HackRF One USB ID
libhackrf support for HackRF One USB ID and board ID
HackRF One antenna port power control in firmware, libhackrf, and hackrf_transfer
fixed submodule instructions (no cmake for libopencm3)