gui testing

HotelView is the frame, methods in the class add panels.  I've started
with just the one panel for now, what do you guys think of doing it this
way?
more gui

Resolves #2

updates ViewCancelGUI (to be moved into HotelView, just got the layout
and stuff working)
updates HotelView with the rest of the code already done in Hotel by
@anhhng , but i changed the message when login fails
Merge pull request #5 from anhhng/david

David