TEST: add T_History::GetHashesWithDuplicates
TEST: add T_History::GetHashesWithDuplicates

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