* qemud/remote.c, src/remote_internal.c: Fix virDomainGetVcpus
in the remote case.
* src/libvirt.c: Allow virConnectListDomains,
virConnectListDefinedDomains, virConnectListNetworks and
virConnectListDefinedNetworks to work in the case where
they are called with maxids/maxnames == 0.
* src/remote_internal.c: Fix virDomainGetMaxVcpus in remote
case so that it copies sufficient data.
* src/xen_unified.c: Remove autostart functions.