- finally managed to get the triple nested subview rendering.
  I was rendering root < main < feeds index < feed previews
  and there was an asynchronicity bug. The problem was that I placed
  the render call inside the success callback of a collection fetch.
  I was also not returning anything from the view render function
  since I placed it in the same callback and the code moved on asynchronously.
- now, on the main page (the only backbone page) there is a preview view
  rendering for each feed item. For now it is just the url, but I will add
  more soon and the pattern is applicable to other features, such as
  tags.
- preparing to work on feed show page
spent entirely too long figuring out that when I seed a Feed, it doesn't get a title because it doesn't hit the feed controller's create action
working on feed show page, some bugginess