update to the instrument setup duplicate checker
including collections
big restructure to get standard stars working.
adding standard stars to the database
working on standard fields
added extraction into slices again
restructuring the gmos section
finishing the improved slice calculator
updating general mos extraction and slice calculation process
Merge pull request #72 from wkerzendorf/gmos/mos/fix_slice_geometry_offset

Gmos/mos/fix slice geometry offset
Merge remote-tracking branch 'upstream/master' into gmos/imaging/redo_readin

Conflicts:
	geminiutil/gmos/alchemy/base.py