This patch adds symbol versions to the spice server library. Each
symbol which is exported by libspice-server gets tagged with the
(stable) version where it appeared first. This way the linker and rpm
are able to figure which version of the spice-server libary is required
by a particular qemu binary/package.
[ 0.8 branch: drop 0.10 symbols from list ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>