Index of new symbols in 2.9

<title>H</title> <indexentry><primaryie>rsvg_handle_get_metadata, function in RsvgHandle</primaryie></indexentry> <indexentry><primaryie>rsvg_handle_set_base_uri, function in RsvgHandle</primaryie></indexentry> <title>I</title> <indexentry><primaryie>rsvg_init, function in RsvgHandle</primaryie></indexentry> <title>T</title> <indexentry><primaryie>rsvg_term, function in RsvgHandle</primaryie></indexentry>