Gameplay mechanics fixed

This is a very small update. 

Unfortunately some major bugs in the movement make the gameplay very annoying. In fact the jump is bugged, often the character gets stuck in the platform in an awkward state that doesn't make you go further making the player frustrating. 

We thought that a fix on the mechanic would make the experience more smoothly. At the end what it counts is the idea behind this rough platformer and its proximity to the Theme of the Evolution.