Set colour balance to unity on connection (#983)
Set colour balance to unity on connection (#983)

This avoids non-deterministic behaviour if white-balance
has been adjusted from another application
OpenPHDGuiding/phd2,OpenPHDGuiding/phd2,OpenPHDGuiding/phd2,OpenPHDGuiding/phd2,OpenPHDGuiding/phd2,OpenPHDGuiding/phd2