Gallery redesign stage 2

Wide breakpoint
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![gallery2](https://cloud.githubusercontent.com/assets/960919/4009502/5629c156-29e5-11e4-83a0-459bfbd9e9ef.png)

Mobile breakpoint
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![gallery2mobile](https://cloud.githubusercontent.com/assets/960919/4009517/8be6cf1e-29e5-11e4-995a-8fbde28a9c9a.png)

`.content--gallery .conent__section {`