Specify image origin in a unit test for DM-840
Remove explicit use of PARENT (use default instead)
Also remove some "from foo import *"
Fixed a clang warning by removing an unused variable.
Restore one image origin to local
Merge branch 'tickets/DM-1176'

Conflicts:
	include/lsst/meas/base/algorithms/SincFluxTemplates.h
Use default image origin of PARENT