FIX: fail-over proxy (instead of host) on 403 errors
FIX: fail-over proxy (instead of host) on 403 errors

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