Correctly archive as an iOS app rather than a generic xcode archive.
We're supposed to be supporting iOS5, lets actually change the project to think so as well.
Update game name.
Adds a few actions to the state machine to see if it's working.
Swaps the variable rate timestep on game for fixed rate.

This apparently works better for Box2D as the maths is easier or
something (pp 395, Strougo/Wenderlich).
Moves collision detection into the Hero.

The hero should handle it's own collisions as part of it's state
machine. However, need to rewrite this at some point to use the better
HeroContactListener, or failing that some more accurate bounding boxes.
Put the hero back on the ground.
Moves accelerometer response into Hero.

This allows the Hero to directly set it's own state.
Fixes the broken Game Over screen.
Merge branch 'restructure' into twintegration.

We're done with the restructure, we need to finish Twitter integration then we can collapse into the master branch.