-Tweaked the restitution formula in resEval().
 Formula: 500 / mass
 the restitution i then multiplied by a constant whether it is
 increasing or decreasing
-Tweaked the restitution evaluation formula.
 Formula: 500 / mass,
 the result is then multiplied by a constant depending
 on whether the ball is in an increasing or decreasing state.
 Min restitution for increasing ball: 0.25
 Max restitution for increasing ball: 2.5
 Min restitution for decreasing ball: 25 (this is very high)
 Max restitution for decreasing ball: 2.5
 Min/Max for ball neither increasing nor drecreasing: 0.5/5