- Dream.path is deprecated. For now the deprecation is suppressed.
- Remove unused dream_svg.
- Remove datadir global. The datadir variable is in scope already, and
global variables were removed in alpha3.
- Dream_tar.tar_response: flush before closing. It's unclear if this is
necessary.
- Change Builder_web.add_routes to Builder_web.routes returning a list
of routes, and in Builder_web_app construct the router.
- Builder_web.not_found is removed due to changes in Dream.router. It
seems an error handler might be the way forward.
