libvirt security, bug fix, and enhancement update

4.5.0-23 - api: disallow virDomainSaveImageGetXMLDesc on read-only connections CVE-2019-10161 - api: disallow virDomainManagedSaveDefineXML on read-only connections CVE-2019-10166 - api: disallow virConnectGetDomainCapabilities on read-only connections CVE-2019-10167 - api: disallow...