fix remove_nodes; get rid of network_name tag; look up component_name for legacy compatibility with old sfa
fix remove_nodes; get rid of network_name tag; look up component_name for legacy compatibility with old sfa

onelab-eu/sfa,yippeecw/sfa,onelab-eu/sfa,onelab-eu/sfa,yippeecw/sfa,yippeecw/sfa