Update to Roots 7

So I know there are a ton of commits, but I'm not sure you want everything I did (plus there's some doing + undoing in there when I realized that jQuery is part of the Foundation package :/). I added the Google Analytics tracking code back in, for example, because I'm going to use it for my base theme. Roots Rewrites was pulled out in 7 in favor of [soil](https://github.com/roots/soil). They also deleted the vCard. There are some minor bugfixes thrown in there, but the biggest part is the LESS (SASS in our case) structure.

If you want to let me know what of these you want to keep, I can split them off and reedit the history so it looks cleaner for you to merge, but I did want you to take a look at the work done first. Let me know what/how you want it.

Sorry if this makes more work for you!