CLEANUP
CORE DATA - added category on NSDictionary to protect against [NSNull null] coming from the json. futsed with the managed objects and added the new nsnull protection into the Wines category. Updated JSON files for each restaurant to more closely match the db schema. connected varietals catgegory and now when a wine is created it's varietals are also created.
CORE DATA - wired up TastingNotes and Brands. Now everything should be created properly for each wine.