* Update boilerplate with `bin/rake rails:upgrade`
* Use test instead of test:all rake task
* Change stylesheet extensions from .css.scss to .scss
* Update docs to use localhost instead of 0.0.0.0 because Rails 4.2
no longer listens on all addresses by default.
This new setting will allow us to control in `site.yml` whether or not
our static assets will be served by Rails or by the app server that is
proxying requests to Rails. This is set to `false` by default so that
the proxying server is responsible for serving the assets.
* scaffold.css is only used by login -> rename to login.css
* standard.html.erb is the default application layout -> rename to application.html.erb
* scaffold.html.erb is unused -> deleted
