fixes in custom memory allocator
fixes in custom memory allocator

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