refactored addresses controller
refactored application controller
fixed app controller fix bug in setorder
refactored items controller
refactored order items controller and address controller success/fail messages, as well as moving items in cart method to application helper
modularized some of the application controller
finished modularizing application controller
moved items_in_cart to order model
refactored orders controller
refactored sessions controller
refactored users controller
Added back to restaurant link on transaction show page
fixed merge conflict