Release of libvirt-4.3.0
Release of libvirt-4.3.0

* docs/news.xml: updated for the release

Signed-off-by: Daniel Veillard <8c3f1b821d9adf233f787f1527ecaa1537ea24a2@redhat.com>

eskultety/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,nertpinx/libvirt,olafhering/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,crobinso/libvirt,eskultety/libvirt,fabianfreyer/libvirt,zippy2/libvirt,libvirt/libvirt,andreabolognani/libvirt,olafhering/libvirt,eskultety/libvirt,jfehlig/libvirt,andreabolognani/libvirt,crobinso/libvirt,jardasgit/libvirt,zippy2/libvirt,jardasgit/libvirt,crobinso/libvirt,jfehlig/libvirt,andreabolognani/libvirt,libvirt/libvirt,libvirt/libvirt,nertpinx/libvirt,nertpinx/libvirt,libvirt/libvirt,andreabolognani/libvirt,jardasgit/libvirt,nertpinx/libvirt,nertpinx/libvirt,zippy2/libvirt,andreabolognani/libvirt,eskultety/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,eskultety/libvirt,olafhering/libvirt,jardasgit/libvirt,zippy2/libvirt,olafhering/libvirt,crobinso/libvirt