Queue Stats in WSGI.

Change-Id: Ic3652dd1c7e7a97323c9c7d86b281c4f1691532d
Implements: blueprint transport-wsgi
Make use of the features in falcon 0.1.3 & 0.1.4

 * To build the query strings;
 * to build content_location;
 * and to ensure the type of the HTTP parameters.

Implements: blueprint transport-wsgi

Change-Id: Ibc06d68e43313e842854f08a8bff010624e7516c