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)

On a small screen, the error page content can probably also be at the top of the content container.

The following changes to the error pages might make sense as well:

- Center `Error code / Error message` text
- Center quote
- Put button explanation above/below the button and center all of it
- Put some vertical space between the different buttons

![screen shot 2014-02-19 at 15 28 05](https://f.cloud.github.com/assets/109850/2207979/81be18c2-997a-11e3-81fd-8e251b8df938.png)