@joshk: Where does `travis-web` update the sidebar? Looking at [the `receive` method](https://github.com/travis-ci/travis-web/blob/86f660310fc92993479be39a7e2536e06b1b53f7/assets/scripts/app/app.coffee#L73-L89), it doesn't seem to do much when a `build:started` event comes in.