Overlay layout tweaks

- Add new logo.
- Simplify by removing repeated metrics and surplus headers.
- Add border to status widget.

![screen shot 2014-10-19 at 12 06 49](https://cloud.githubusercontent.com/assets/58871/4692932/2ab39690-5781-11e4-9ae4-65985917ca65.png)

Can we set the font size for the normal text to 16px? I find 14px harder to read.