Standard animation library

I suggest to create `react-motion` github org and put bunch of separate libraries under that org.

Here is a list of what can be implemented on top of react-motion:
http://madrobby.github.io/scriptaculous/core-effects/
http://madrobby.github.io/scriptaculous/combination-effects/

I would make them each as a separate wrapper-component in separate repo.

Will do some basic things like `react-motion-bounce`