Saving Doc Jack demo 1.0 file

v1.0b:

• General difficulty calibration in all levels.
• New oxygen refill mechanic (fast as lightning) .
• Fixed a bug in the online ranking display.
• Fixed a bug in the map selection menu.
• Resolved some minor visual bug.

v1.0c:

• Fixed gamepad analog stick bug.

v1.0d:

• Fixed the negative time score bug.