Comment clarity
Dummy Rails app in spec/dummy
Add a few capybara specs against the dummy app
Add `script/server` to start the dummy Rails app

Although I guess it's not going to be so "dumb" soon.
Reorganize assets

Rails was acting pretty weird about me trying to use lib/assets as
the assets dir. So doing it the old fashioned way with an app/ dir.
Finish quick demo views in dummy app
xray.js bugfix