Created the folder to teach IPython.

It contains:
- the IPython notebook explaining the clap and fling mechanism
- a folder that contains resources such as  pictures or data
- a folder that contains the style of the notebook
Ignore the checkpoints created by IPython.
Filled the notebook and added ping files to resources folder.
Added image from Sane(2003) describing the clap and fling mechanism.
Added the motion of the winngs with an animation using JSAnimation.
Merge pull request #1 from barbagroup/mesnardo_ipython

Created a IPython notebook on the clap-and-fling mechanism to teach IPython Notebook