* Reverted time management to use out own 'setRedrawFinishedCallback' calback.   - The requestAnimationFrame feature was not guaranteeing that the frame would be rendered. In some cases, the time value was being updated multiple times between redraws, and this stated causing artifacts it the animation.
* Reverted time management to use out own 'setRedrawFinishedCallback' calback. 
 - The requestAnimationFrame feature was not guaranteeing that the frame would be rendered. In some cases, the time value was being updated multiple times between redraws, and this stated causing artifacts it the animation.

chbfiv/fabric-engine-old,chbfiv/fabric-engine-old,chbfiv/fabric-engine-old,errordeveloper/fe-devel,errordeveloper/fe-devel,errordeveloper/fe-devel,errordeveloper/fe-devel,chbfiv/fabric-engine-old,chbfiv/fabric-engine-old,chbfiv/fabric-engine-old,chbfiv/fabric-engine-old,errordeveloper/fe-devel,errordeveloper/fe-devel,errordeveloper/fe-devel