Updated default device pointers for new USB port arrangement.
Fixed rotation stage/z axis direction cosine error when z axis is at a rotation stage angle other than 180 degrees. Re-enabled beam power measurements, but made it optional (default OFF) for prism testing.
Added prism testing module.
Changed device pointers.
Fixed coordinate system error with z-axis/azimuth orientation
Merge branch 'development' of github.com:emmpbee/itop into development

Pulling changes made on new DAQ machine to maintenance repo.