various optimizations and bugfixes

optimized internal processing of the cameras IP streams

optimized camera settings are pushed to the cameras upon turning on the Teacher Tracker (note: also update the cameras to the latest firmware version published on http://avonic.com )

licence AV-LC70 is no longer required to use the tally lights during the calibration process

remote support toggle switch is turned off automatically after one month

audience exclusion line is permanently visible in the status webpage