Log Message:
-----------
Update link to Oleg and Teodor's GIN page.
(Extracted from fast-insert patch, since it ought to be back-patched)
Modified Files:
--------------
pgsql/doc/src/sgml:
gin.sgml (r2.15 -> r2.16)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/gin.sgml?r1=2.15&r2=2.16)