Change AV formats so they can delegate to the controller. Now users (or plugins) can override details_for_render in their controllers and add appropriate additional details. Now if only they could *do* something with those details...

If IntegrationSession is initialized with an objects that responds to #routes, automatically extend the URL helpers from the RouteSet onto it

Including UrlFor in Redirecting and Head will warn usefully if a controller is wired up without a router included (and still support redirect_to "omg")

Remove traces of SharedTestRoutes from user code; leave it as a standin for Rails.application.routes in Rails internal tests

	This attr_accessor can be set in a before filter or in the action itself.
    Overwriting default_url_options still works but will output a deprecation notice.

Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>