small API change

[Olivier Andrieu]

Hi,

I've just committed a small change in dbus-connection.h. Now object
registration functions expect a char* for the path argument (instead
of a char**):

  dbus_connection_register_object_path
  dbus_connection_register_fallback
  dbus_connection_unregister_object_path
  dbus_connection_list_registered

cf. http://freedesktop.org/pipermail/dbus/2003-November/000607.html
and bug #683 

(I did not update the python and mono bindings).

-- 
   Olivier