add helper do_local_mount_as_root()
add helper do_local_mount_as_root()

reneme/cvmfs,trshaffer/cvmfs,djw8605/cvmfs,alhowaidi/cvmfsNDN,cvmfs/cvmfs,alhowaidi/cvmfsNDN,djw8605/cvmfs,Gangbiao/cvmfs,Gangbiao/cvmfs,DrDaveD/cvmfs,Moliholy/cvmfs,trshaffer/cvmfs,DrDaveD/cvmfs,Gangbiao/cvmfs,DrDaveD/cvmfs,alhowaidi/cvmfsNDN,Moliholy/cvmfs,Moliholy/cvmfs,Moliholy/cvmfs,trshaffer/cvmfs,djw8605/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,DrDaveD/cvmfs,Gangbiao/cvmfs,cvmfs/cvmfs,alhowaidi/cvmfsNDN,trshaffer/cvmfs,djw8605/cvmfs,DrDaveD/cvmfs,djw8605/cvmfs,reneme/cvmfs,Moliholy/cvmfs,reneme/cvmfs,alhowaidi/cvmfsNDN,cvmfs/cvmfs,cvmfs/cvmfs,trshaffer/cvmfs,cvmfs/cvmfs,reneme/cvmfs,Gangbiao/cvmfs,DrDaveD/cvmfs,reneme/cvmfs