Partial visual overhaul of analysis section

Collapse analysis sections by default
Remove second listing of analysis at the top (collapsed analysis sections are their own table of contents)
Replace text indicators of status with images
* Red for error
* loading gif for running
* green for complete-with-results
* yellow for complete-but-no-results

Before:
![screen shot 2014-11-25 at 3 17 37 pm](https://cloud.githubusercontent.com/assets/3044831/5201587/3c827e48-7542-11e4-9692-558c63da1767.png)

After:
![screen shot 2014-11-26 at 7 54 31 am](https://cloud.githubusercontent.com/assets/3044831/5201589/43f3dd02-7542-11e4-9c4e-853775c9db2d.png)