Design of tracker documented.
Handle multipart form data in parameter context.
New torrent upload controller.
(Routes: GET /torrents, GET /torrents/new, POST /torrents/create)
Refactoring of multipart handler.

Note: NOT TESTED. (Though it compiles… which is usually a good sign.)
Reorganizing and documentation.

I'm trying to keep actions at the top of the file, with contexts in the middle [as they may have
"before or after" processing on a per-controller basis], and request lifecycle stuff at the end [as
it usually defers to the application controller unless its doing something really fancy.]
Torrent page now allows uploads and stores them in the database.

Please note there is a new migration to run w/ this commit.
Download torrents by torrent_id.

Torrent index now lists first 100 torrents by ID/Hash.

TODO Item: Link from "{{ID}}", or: how to embed
mustaches into my view helpers.