adding a function for ipython notebooks
 adding a switch to force recomputing
 using shearing instead of a rotation when preforming a translation
 adapting the code to run better on nootebooks : use of pyprind + function to show videos
 revamping the script before backporting warped MC
 revamping the script before backporting warped MC
Update
Merge branch 'master' of https://github.com/NeuralEnsemble/MotionClouds

* 'master' of https://github.com/NeuralEnsemble/MotionClouds:
  Update

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