(explicitly) enable exceptions for libcvmfs
(explicitly) enable exceptions for libcvmfs

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