add price, quantity and unit to item-table
Actually save item data when entered in CraeteItemActivity
add price,quantity and unit to recipes
fixed various bugs with recipes
Merge branch 'master' of https://github.com/ese-unibe-ch/ese2013-team8

Conflicts:
	Code/ShoppingList/src/ch/unibe/ese/shopnote/core/sqlite/SQLiteHelper.java