Test JJB jobs during Travis run
Test JJB jobs during Travis run

jenkins-job-builder has a "test" command which converts
the yaml data to xml. Run that command to catch basic
conversion error.

aspiers/automation,gosipyan/automation,vmoravec/automation,SUSE-Cloud/automation,gosipyan/automation,aspiers/automation,gosipyan/automation,SUSE-Cloud/automation,aspiers/automation,vmoravec/automation,vmoravec/automation,vmoravec/automation,gosipyan/automation,SUSE-Cloud/automation,aspiers/automation,SUSE-Cloud/automation