Bug#20627 - INSERT DELAYED does not honour auto_increment_* variables
Merge from 5.0.
Changed auto_increment handling to the 5.1 pattern.


mysql-test/r/delayed.result:
  Bug#20830 - INSERT DELAYED does not honour SET INSERT_ID
  Bug#20627 - INSERT DELAYED does not honour auto_increment_* variables
  Merge from 5.0.
  Updated the test result.