Fixed meta data retrieve when OID is larger than 2^31
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fixed meta data retrieve when OID is larger than 2^31
Merge branch 'PHP-5.5'

* PHP-5.5:
  Fixed meta data retrieve when OID is larger than 2^31

Conflicts:
	ext/pdo_pgsql/pgsql_statement.c