Improve control and fix bugs

- how can i choose exact character when more than one characters in a place? Should give a way to select character!
- moving/attack simply by select character and point, not drag, its much better!
- turn off sound but does not effect in case pop-up, e.g. When synthensis, its noisy. Fix it!
Else, game is good!

Leonihart about Mystical Gem