Added motion controll, now only portrait mode allowed, status bar removed, etc

Motion control:
Playership can be controlled by rotating device. Still a little glitchy
but it works. Therefore some physicsbodies had to be created and their
masks changed.

Only Portrait mode allowed:
This is a setting in the .plist file. You have to change it again if
you want the game work in other orientations.

Status bar removed:
Looks better without it :)
This, too, has been done in the .plist.

Removal of projectiles when hitting frame:
When a projectile hits the scenes frame it is being removed from its
parent.