Revert most of the 'hostname' patch. Too much stuff still breaks when
hostname is updated at runtime. Distros or users who want hostname updates
can use dispatcher scripts to update the hostname if they need it.
git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@3945 4912f4e0-d625-0410-9fb7-b9a5a253dbdc
5611f4c4d0