This uses the latest version of the sporto/erl dependency (in fact, it can use version 11, 12 or 13).
It is a major version bump because of changes in RouteUrl.Builder. The difference is the from sporto/erl 11 onwards, the query portion of the URL is modelled as a List (String, String) rather than a Dict String String. This is clearly better, since a URL query can have duplicate "keys". But it does mean a breaking change in the API.