[dev1008] JUMPING, easy solution and useful feature.

[Randis]

the player character will perform a jump/hop mainly to overcome small obstacles in his way instead of having to walk around.

Jump is performed easily with a double click on the directional button (up) on the keyboard or pad.

It is easy and it will not waste a extra button on PS3 pad.

- can not use in battle mode

the jump animation and landing should look realistic and can not be spammed (small delay between jumps)