More verse fun

- lidé se převelice divili,
když na nohou deset prstů zjistili.
Ze satir biskupa Halla

I finally implemented visualization of shared mesh object in object mode. You can see changes coming from other users, when shared objects are in object mode. Implementation was quite easy, because Daniel Dunbar created something called derived mesh. Other benefit is, that user can't paint in vertex paint mode as well in texture paint mode or select face in uv face select mode. Why is this good? Because Blender can't share such data yet. You can download testing binaries at usual place.