Preliminary M1000 support
Update for revC
fix hardware configs
add beta configuration methods for m1k - simv, svmi, hi-z, samplerate
add m1k to makefile
normalize output voltage - div by 5 for DAC
fix switches yet?
m1000: Turn off SMU channels on device removal
m1000: Tweak packets_per_transfer and timeout for m1k's bigger packet size

To reduce the time between updates