Refs #6418 - Set up certificates for Candlepin/Qpid integration.
Refs #6418 - Minor fixes to Candlepin Qpid configuration.

- Add mode, owner, and group to AMQP cert directory.
- Properly reference default_ca_name variable
- Shorten exec type names
Merge pull request #21 from awood/master

Set up certificates for Candlepin/Qpid integration.