Configuration file for ipa-docker-test-runner
    
    Prepare a configuration file for
    https://github.com/martbab/ipa-docker-test-runner. The latest
    freeipa-fedora-test-runner Docker image (F25 as of time of writing this
    message) will be used to run tests. Some of them will be purposefuly excluded
    from the test suite, namely:
    
    * test_integration and test_webui: for obvious reasons, CI tests require
      complicated multi-host setup which is currently not achievable in Travis CI
    * test_ipapython/test_keyring: Docker can not cope with storing and retrieving
      secrets from Kernel keyring, that is a known issue
    * test_xmlrpc/test_dns_plugin.py:test_dns_soa: There are 2-3 non-deterministic
      failures in this suite in Travis CI, this suite was disabled until the root
      cause is discovered and fixed/workarounded
    
    Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
    Reviewed-By: Christian Heimes <cheimes@redhat.com>