0.3.0-d
Fix the session wrapper. Express middlewares don't always need to pass req, res to their "next" it seems.
Rename the internal representation of SessionWrapper to SessionWrapper

Also take a first crack at documenting some of this crap.
Fix some deprecation warnings from express-session when sessions are enabled
Fix a weird bug in Renderable where only the inner renderables were rendered, but the outer was not
Actually allow the application's Page controller to change its view's mode.
Clean up some console chatter
Clean up some linter warnings
point turnpike_server to the right copy of underscore (lodash, actually)
0.3.0-e