Setup work

I added some of the CSS and images from v1. I know there's new designs in the works but we could re-use this until we get there.

Also added the `os` module to `nodewrappers` since we'll be needing that one.

Then I stubbed out an install module to look at so we can decide or reference how a section like that would be executed. With the work I did early on in converting the v1 installer to install the v2 dependencies, I don't think it would be too difficult to knock it out as something to at least get developers up and running easily to start with.