Detector

There is a problem CCD images windowed in the Y-direction when using the alfosc.readout command to readout the CCD before the exposure time has completed, where an image is returned with a wrong window. It was discovered that this was a problem in the CCD controller itself. Considering that the same person that is developing the new detector controller would have to correct this it was decided to wait for the new controller to correct this. The documentation and the relevant commands were updated to reflect this problem.