Incremental update

Much progress was made to the real-time combat system:

• Added support for both tap to toggle lock-on and hold to lock-on (both works simultaneously, use at will ;)
• Added support for direct mouse clicking to lock-on.
• Added direct mouse aiming mode for guns. 
• Added precision gun aiming mode for gamepad control.

Meanwhile, I also did a quick edit to add some flavor conversations to the characters in the Pandora's Puzzle minigame. Do download and check it out!