Remove unecessary as from objectifier
Add mappings for nut data in objectifier
Rename food group mapping variables in objectifier
Rename nut data mapping variables in objectifier
Fix column reference for food group code in objectifier
Fix column reference for nut data NDB number in objectifier
Convert nutrient defintion references to use mappings in objectifier
Fix reference to nutr no for nut data and add src code mappings in objectifier
Add mappings for nut data deriv cd in objectifier
Add mappings for langdesc in objectifier
Fix factor code reference in objectifier
Add mappings for weight in objectifier
Add mappings for footnote in objectifier