Minor Update v0.3.1

Minor fixes before I move onto another jam! :D

• Stop the mission auto complete being toggled on by default.
  (If it is toggled on, you can toggle it off with the "Testing" controls)
• Adjusted the cursor to indicate it is more like a "virtual joystick", not a crosshair.
• Added sprites in front of the ship to help aim based on the direction of the ship...