added automatic user creation/login process
currentPostcard refers to postcard object on appDelegate instead of shellView
fixed alert for no saved addresses; added automatic becomeFirstResponder for each text field; fixed textfield keyboard type
updated paypal completion message
textfield is not scrollable for message on front
all core data models store userID; user relation is saved to Parse for all objects
Merge pull request #19 from mitrenegade/0.3.2/user

0.3.2/user