Finished Cancel Order Action
Updated UI in Add Pizza Action
Added confirmation message for cancel order button, changed pizza thumbnail from pepperoni pizza to a generic pizza illustration
Merge branch 'master' of https://github.com/jdpalmares/pizzaccio
Updated bugs on Cancel Order Action, added error messages
Merge branch 'master' of https://github.com/jdpalmares/pizzaccio
Edited and Added files due to code cleaning and proper code convention and addition of the sales module