Literals with attributes should be added as rdf:value nodes
privilegeManager was removed in Firefox 17, so it seems: https://support.mozilla.org/en-US/questions/936845 : All references to UniversalXPConnect removed.  Privilidged code is no longer allowed -- use an extension -- or a proxy -- to read arbitrary web content.
Add credentials to the HTTP request when fetching data.
#36 try to be able to customize jquery ajax request in requestURI method
Add possibility to customize the headers in the fetcher by providing jquery options