Final fixes, w/Charles Dewhurst, to finally calculate Qx and Qy correctly as vector components of the vector Q, as it is projected onto the XY planar detector. An additional function has been added to calculate Qz as well, but is not written out anywhere. This calculation only has an effect at the highest q-values, for QxQy? export. At a Q ~ 0.45, the correct Qx and Qy are about 2% different than the old calculation. |Q| has always been correct.