Update to PyGreSQL-3.1

Author: bmomjian

HISTORY

@@ -144,7 +144,7 @@ Allow DROP VIEW view1, view2 (Mark)
 Allow multiple objects in DROP INDEX, DROP RULE, and DROP TYPE (Tom)
 Allow automatic conversion to Unicode (Tatsuo)
 New /contrib/pgcrypto hashing functions (Marko Kreen)
-New pg_dumpall --accounts-only option (Peter E)
+New pg_dumpall --globals-only option (Peter E)
 New CHECKPOINT command for WAL which creates new WAL log file (Vadim)
 New AT TIME ZONE syntax (Thomas)
 Allow location of Unix domain socket to be configurable (David J. MacKenzie)