Updated the Writing page.

Made a bunch of updates to the page that describes writing and running
Python programs.
Updated IPython information

Updated all of the IPython documentation. Added some Figures and moved
all the files into their own directory.
Updated, split in two the Basics page

Finished off a draft of the basics page. Had to split it in two because
it was getting pretty long. First part covers the common data types.
Finished Basics Pt 2 draft

Finished a first draft of the second half of the basics section.