`url-for` does not match rfc design for query-params

it expects query-params to be a param instead of a named argument

Implementation: https://github.com/rwjblue/ember-router-helpers/blob/be355137b4ae957934831c4be11bad3a9d848fdb/addon/helpers/url-for.js#L9

RFC: https://emberjs.github.io/rfcs/0391-router-helpers.html#url-for-helper

Start at addon/helpers/url-for.js line 9 and compare its argument handling with the linked RFC section for the url-for helper. Reproduce the current query-params behavior, then verify that query-params are accepted as specified by the RFC and that the helper matches the documented design.

Escrito por el modelo de indexación a partir del texto del issue.