Replace envAppend with envPrepend in ups table files.
Merge branch 'u/rallsman/DM-868'
Include xy0 in SdssShapeImpl::getFixedMomentsFlux()
Fixup for previous bugfix (will get squashed)
Merge branch 'u/jbosch/DM-1644'
Merge branch 'master' into u/pgee/DM-1608
These changes are for the merge to master.  DM-1644 broke GaussianFlux