595-46, 54 Options page subscription and Barcode Autofill

Options page was changed to update FoodItem as to whether or not it is
subscribed to.  Also, AddNewItem page was updated to autofill Name,
Barcode, and Type fields if the barcode is already in the DB.
Merge branch 'master' of https://github.com/alter3go/SmartFridge

Conflicts:
	Capstone/Capstone/Inventory/FoodInfo.cs