add comment about handling soap faults in twisted suds client
add comment about handling soap faults in twisted suds client

NORDUnet/opennsa,NORDUnet/opennsa,jab1982/opennsa,jeroenh/OpenNSA,NORDUnet/opennsa,jab1982/opennsa,jeroenh/OpenNSA,jeroenh/OpenNSA