-calibrate page can take two images now, but the resolution is hardcoded (reference = kinectV1, uncalibrated = kinectV2)
-kinectV2 returns slower?
-sensors send rangeInMM now, setup page seems to work with new range value?

-BUG: sensors sometimes show up multiple times in calibrate page, depending on order of restarting clients/server (same ID, so possibly reconnecting sensors rather than disconnecting completely will not remove old entries?