Landscape fixed and window size

-Flipped x and y variables in player move to work landscape on iPhone.
(This could be the worst way of doing it, I can't find anything online
about it)
-Changed text in buttons so they write vertically as to fit with
landscape.
-Added a jump button.
-Changed screen.size to a set size meaning it can now be run in a
browser using your processing. This will have to changed when we port to
iPhone but for now it'll do.