Update to allow arrays of routes to be passed to the http frontend.
This also supports named parameters as permitted by the
router.
To avoid external dependencies in the middleware, a RouteParam and
RouteParams type was added to the bittorrent package.
Note: this eliminates the need for "enable_legacy_php_urls", as
the the additional route could be added to the route array. However,
this may be considered a breaking change.
