* [WEBQR_API,NEW] Added simple methods for changing and describing circles.
* [WEBQR_SERVER,EXT] Use HTTP methods GET, PUT, SET, and DELETE on /circle.
* [WEBQR_SERVER,EXT] Add the content type (JSON) to the XML HTTP request.
* [WEBQR_SERVER,EXT] No longer send the method property. Start sending the graph property.