433 homepage redesign

This is still a work in progress but wanted to synch up. I haven't yet tested the `featured_news` tag's output in the homepage for lack of NewsItems. I'll await the fixture you mentioned to try that out. I am pretty sure there will be some styling tweaks required there.

The story/project/organization lists are ripe for population with real content—I am assuming that's something you can do quickly; if you'd like to sic me on it just let me know.