Versio 0.0.5

 * Added support to HTTP Basic access authentication 
 * Added support to use data URI scheme in callback
 * Added support to SVG images
 * Added support to requests/response without "Content-Length"
 * Added detection if the "Content-Length" header is equal to "0" (Content-Length: 0)
 * Moved "setup vars" to "Class"
 * Removed unecessary "fullurl = fullurl"
 * Removed "must-revalidate" header
 * Remove charset in "mimetype"
 * Fixed bug in detecting if "callback" and "url" are undefined (GET params)