pgsql-server: Add: > * Order heap pointers on hash index pages by hash

Log Message:
-----------
Add:

* Order heap pointers on hash index pages by hash value and ctid

Modified Files:
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pgsql-server/doc:
TODO (r1.1267 -> r1.1268)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/TODO.diff?r1=1.1267&r2=1.1268)