[WFLY-508] Added tests for batch integration.
[WFLY-508] Fix order of the batch subsystem in the example configuration files.
[WFLY-508] Only support in-memory for the job repository type at this point. Also rename job-repository to job-repository-type to be more consistent with what JBeret uses.
[WFLY-508] Log a warning if batch configuration files were found, but CDI was not enabled.