Provides framework for other plugins to advertise services via XRDS.
Project maintined on github at diso/wordpress-xrds-simple.
= version 1.2 (Jul 17, 2015)= - allow 'xri://$xrds*simple' Type to be filtered out - check if $_SERVER['HTTP_ACCEPT'] exist to avoid notice that break the xrds file
= version 1.1 (Nov 16, 2012)= - fix various PHP and WordPress errors and warnings - add ability to fetch plain text XRDS document (mainly for debugging. see example)