Force thumbnails on news container links list

Because lots of pages use the news container we need to force the optimal looking version of it which is when there are images in the links list on desktop.

Otherwise we'd have lots of white space in there.

Also: clamping the text to 3 lines in webkit to prevent bad distribution of items across columns.

## Before

![screen shot 2014-02-28 at 17 21 34](https://f.cloud.github.com/assets/85783/2296298/ddafe2ae-a09c-11e3-9df9-41d6ecb1939e.PNG)


## After

![screen shot 2014-02-28 at 17 22 30](https://f.cloud.github.com/assets/85783/2296301/eda549f6-a09c-11e3-8c36-d7cf7a0b6f81.PNG)

![ ](http://media.giphy.com/media/Cksb4iyLwSV8Y/giphy.gif)