Minor update - Manual rotation & menu cleanup

This small update just fixes a couple of oversights in the previous update. [list] [*]You can now use A/D or left/right arrow at any time to rotate the player (regardless of rotation setting). [*]Added option for smooth rotation (as opposed to the 'snap' rotation at the moment. [*]Cleaned up the options menu (added a separate 'quality options' menu). [*]Experience mode lock setting now starts you off in experience mode on startup (skips the main menu). this is very useful for public demos and arcades. [/list] Enjoy!