Original commit message from CVS: 2005-11-28 Julien MOUTTE <julien@moutte.net> * docs/libs/tmpl/gstcolorbalance.sgml: * docs/libs/tmpl/gstmixer.sgml: * docs/libs/tmpl/gstxoverlay.sgml: * gst-libs/gst/interfaces/xoverlay.c: Add docs for the Xoverlay interface.