Zero corriendo y saltando

Based on
http://unity3d.com/learn/tutorials/modules/beginner/2d/2d-controllers
Revert "Zero corriendo y saltando"

This reverts commit 6db201a7db844695e555b0d724c3097e264e8d0e.
Revert "Revert "Zero corriendo y saltando""

This reverts commit 6ea532ea0f1dbb37fe805b1d69d53b70c89f2219.
Merge remote-tracking branch 'johan/Jump' into mergeBranch