Enhance Mobile Experience

This is round one of some enhancements I'm making to the mobile experience.

Included in this is:

- Moved important links to a fixed footer
- Added icon for home screen app
- Configured home screen app for iOS (status bar, hidden address bar)

![screen shot 2014-02-15 at 12 10 57 pm](https://f.cloud.github.com/assets/657707/2178542/9037adc0-966c-11e3-9017-14ac4be10736.png)

![screen shot 2014-02-15 at 12 10 42 pm](https://f.cloud.github.com/assets/657707/2178543/9470124c-966c-11e3-961d-f2915079b60f.png)