Adding documentation for package

I wanted to start with a very small section to make sure I was on the correct track. If so, I'll keep going with the import sections.

This is what the rendered asciidoc looks like:
![2014-06-27_2154](https://cloud.githubusercontent.com/assets/1368935/3419605/99281832-fe6f-11e3-81b6-f32eb780de5f.png)