dangling extern vars

["Sergey I. Panov" <sipan mit edu>]

The following "extern" variables in bonobo are not declared in any 
of the C files. 

gnome-embeddable.h:
 ...
 extern POA_GNOME_Embeddable__epv gnome_embeddable_epv;
 ...

gnome-object.h:
...
extern PortableServer_ServantBase__epv  gnome_object_base_epv;
extern POA_GNOME_Unknown__epv           gnome_object_epv;
...

Somebody forgot to put corresponding declarations in gnome-object.c
and gnome-embeddable.c

If that was not done on purpose, I would fix that.

 Sergey