Large objects

They now have their own relkind type, and this is now used by psql and
pg_dump.

Vadim, the sequence creation global variable hack is now gone, and
relkind is passed to DefineRelation and heap_create_with_catalog.

-- 
Bruce Momjian                          |  830 Blythe Avenue
maillist@candle.pha.pa.us              |  Drexel Hill, Pennsylvania 19026
  +  If your life is a hard drive,     |  (610) 353-9879(w)
  +  Christ can be your backup.        |  (610) 853-3000(h)