mode needs to be something octalish

[scottrigby]

Depending on the Ansible version (less then 1.8), we need to use octal for chmod.

failed: [dev] => {"details": "invalid literal for int() with base 8: 'a+rwx'", "failed": true, "gid": 112, "group": "mysql", "item": "", "mode": "0755", "owner": "mysql", "path": "/tmp/mysql", "size": 4096, "state": "directory", "uid": 106}
msg: mode needs to be something octalish

[rabellamy]

See #194