Minimum Viable Product

This is an open pull request on the `mvp` branch, whose goal is to create a minimum viable product. This is defined as the bare minimum I need to tweet about the site without vigorously deprecating myself, and to feel comfortable showing something to IG offices in meetings.

To kick it off, I did some extreeeemely preliminary planning and sketches, on actual paper.

![sketch-1200](https://cloud.githubusercontent.com/assets/4592/3310282/11a3af22-f6b1-11e3-88d7-595e60835674.jpg)

Even this includes way more than I need. What I need for an MVP is:

- [x] An *adequate* visual style.
- [ ] Report listings:
  - [x] Full text search of reports.
  - [ ] Per-agency listing of reports.
  - [ ] Latest reports.
  - [ ] RSS feeds for all of these.
- [ ] Landing page for report, including extracted text.
- [ ] A sitemap.
- [x] SSL certificate.

I consider none of the above optional. There is a lot more that could be done later. And I mean *adequate* with the visual style -- a more thorough design can come later too.