serveral issues with InnoDB settings

[Andrew Hutchings]

1.
  --innodb.fast-shutdown arg (=1) Speeds up the shutdown process of the
                                        InnoDB storage engine. Possible values
                                        are 0, 1 (faster) or 2 (fastest -
                                        crash-like).

drizzle> show variables like 'innodb_fast_shutdown';
+----------------------+-------+
| Variable_name | Value |
+----------------------+-------+
| innodb_fast_shutdown | 65537 |
+----------------------+-------+
1 row in set (0 sec)

2. innodb_flush_log_at_trx_commit is 65537 too
3. innodb_use_native_aio is off by default with no way to turn on
4. autoextend-increment default MySQL 5.5 - 64, Drizzle - 8. We should probably match MySQL