Bootstrap skinning issues

- No margin between secondary panels
- More obvious that panels and video are not properly aligned
- No margins between different panels on mobile view

![screen shot 2014-02-19 at 15 25 07](https://f.cloud.github.com/assets/109850/2207950/1ebf3b20-997a-11e3-8b08-ae8602251abb.png)
![screen shot 2014-02-19 at 15 25 31](https://f.cloud.github.com/assets/109850/2207951/1ef49b76-997a-11e3-9ed4-d41ac3310326.png)