Fixed some bugs, gamepad support

I've added some basic controller support, only tested on xbox controller, its still a work in progress though so it might be a bit buggy. I've also fixed a bug where the player could jump along the walls.

The controller controls are:

• DPAD/Analog stick - move the player
• A: Jump (and menu select)
• Right trigger: rotate clockwise
• Left trigger: rotate anti-clockwise

Thanks for looking and have a nice day.

-leopardrunnergames