pgsql: Update > * Allow GIST indexes to create certain complex index

Log Message:
-----------
Update

* Allow GIST indexes to create certain complex index types, like digital
trees (see Aoki)

783a787

Modified Files:
--------------
pgsql/doc:
TODO (r1.1588 -> r1.1589)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1588&r2=1.1589)
pgsql/doc/src/FAQ:
TODO.html (r1.95 -> r1.96)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.95&r2=1.96)