Row 2

@ryanmccrary, here are my commit notes:

- used backstretch for the images, so that they always fill the allotted area both in width or in height
- changed out pngs for svgs (retina, dawg)
- simplified and cleaned up markup
- changed the way you were doing inline layout to use inline-block

I'd encourage you to take a look at the changes. I'm gonna merge into master but I wanted this to be available so you could comment on and discuss the code changes with me, if you wanted to.