Design refresh

Working on a design refresh for the app. I think it would be great to add a bit of color and add more info in rollovers. I think it would be great to be able to see a color differentiation for people that are in day time vs night time. I think it would be nice to keep in mind some future buttons for settings or adding/removing people from the list. I'm feeling quite inspired by [Google's Material Design](https://www.google.com/design) lately. I think down the line it would be cool to allow teams to theme add their own branding/colors to the UI.

Any/all feedback is welcome! 

Here is the work in progress:
![screenshot 2014-08-25 10 54 50](https://cloud.githubusercontent.com/assets/1509457/4031508/06611b4e-2c68-11e4-9dfa-0e50b5428f98.png)