allow for S3 repos in test_functions::create_repo()
allow for S3 repos in test_functions::create_repo()

reneme/cvmfs,Moliholy/cvmfs,alhowaidi/cvmfsNDN,DrDaveD/cvmfs,DrDaveD/cvmfs,djw8605/cvmfs,MicBrain/cvmfs,djw8605/cvmfs,cvmfs-testing/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs,Gangbiao/cvmfs,alhowaidi/cvmfsNDN,Moliholy/cvmfs,djw8605/cvmfs,MicBrain/cvmfs,reneme/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,trshaffer/cvmfs,Gangbiao/cvmfs,djw8605/cvmfs,trshaffer/cvmfs,Gangbiao/cvmfs,trshaffer/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs,MicBrain/cvmfs,Moliholy/cvmfs,DrDaveD/cvmfs,Gangbiao/cvmfs,reneme/cvmfs,MicBrain/cvmfs,reneme/cvmfs,djw8605/cvmfs,alhowaidi/cvmfsNDN,cvmfs/cvmfs,Moliholy/cvmfs,cvmfs-testing/cvmfs,reneme/cvmfs,cvmfs-testing/cvmfs,DrDaveD/cvmfs,cvmfs-testing/cvmfs,alhowaidi/cvmfsNDN,trshaffer/cvmfs,cvmfs-testing/cvmfs,Gangbiao/cvmfs,MicBrain/cvmfs,alhowaidi/cvmfsNDN,Moliholy/cvmfs,DrDaveD/cvmfs,trshaffer/cvmfs