When position changes, velocity within this position change is calculated as well as aceleration when velocity is changed
Merge branch 'master' into physics
bug adding properties soved
bug calculating aceleration solved
bug with keyPress solved
Merge branch 'master' into physics
bug about order being changed when click ressolved.  Added method round to Vector and Angle. Components suports now Postupdate and PostRender
Physics qhich calculates the velocity with the position variation and the aceleration with velocity variation finished. (Does not modifies the internal value)
Added Documentation about the new method round. Added Documentation about posts methods on components
Physics test