added a hidden switch in cvmfs_server to create a master replica
added a hidden switch in cvmfs_server to create a master replica

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