Log Message:-----------Change xpath_table() and xslt_process() from IMMUTABLE to STABLE.
Modified Files:-------------- pgsql/contrib/xml2: pgxml.sql.in (r1.5 -> r1.6) (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/xml2/pgxml.sql.in.diff?r1=1.5&r2=1.6)
