Segregate individual sites

[ktbartholomew]

Currently, each site shares a lot of files with all the others (e.g: config/content.json, Gruntfile.js). This lack of isolation makes working on individual sites kind of painful. The control repo should be organized to allow ALL configuration, content, and assets for a given site to be completely isolated from that of a different site. This may be by putting all the data for a site into a subfolder with the site's presented domain, or maybe even by creating "child control repos" that are actually NPM dependencies.

[ktbartholomew]

Here's the direction I'm headed. Basically, I want to make the control repo a collection of npm packages. There's a lot of "plumbing" directly inside the presenter right now, and this will let us abstract a lot of into each site and just provide a consistent interface back to the presenter.

https://github.com/deconst/deconst-control