add legacy support for parted < 2.x
add legacy support for parted < 2.x

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