Correct mapRequest() to include query string in $uri

[kentr]

Problem / motivation

See here for background.

The problem case: POST requests that also have query string values in the URI.

Expected results

• Request::$request contains the POST data.
• Request::$query contains the query string data.

Actual results

Since, in the case of POST requests, the $parameters parameter contains only the POST data, the query string values will be missed unless they're included in $uri (IOW, only the POST data will be see by create()).

Suggested fix

Request::create() uses any query string values that are included the $uri parameter when building its $query values.

To fix the problem, add the query string to the $uri when calling create().