WIP Starting to work on IPython support for pydy.viz

This PR is created to implement IPython notebook support for visualizations. 
@chrisdembia I cant figure out how to make all these script links to work with both IPython and SimpleHTTPServer at the same time.

IPython requires links to be as:

`static/js/external/jquery/jquery-ui.js`

and simplehttpserver requires links as:

`js/external/jquery/jquery-ui.js`