core: Don't use now deprecated functions
core: Don't use now deprecated functions

GNOME/rygel,GNOME/rygel,Pelagicore/Media-Manager-Rygel-patched,jku/rygel,luisbg/rygel,Pelagicore/Media-Manager-Rygel-patched,Tarnyko/rygel,Tarnyko/rygel,jku/rygel,GNOME/rygel,Pelagicore/Media-Manager-Rygel-patched