reverted notify_mutex introduction, since this prevents parallelized

reverted notify_mutex introduction, since this prevents parallelized

Sat Jul 30 21:10:26 2005  Tim Janik  <timj@gtk.org>

        * gobject.c: reverted notify_mutex introduction, since this prevents
        parallelized setting of object properties on different objects, and
        serves no apparent purpose (to me at least).
        g_object_real_dispose(): removed non-atomic reference count
        modifications.
        g_object_unref(): make sure the closures array is destroyed when
        destroying signal handlers.

        * gparam.c: cosmetic changes.

        * gsignal.c: comment fixup. allow 16bit blocking count.

        * gsignal.c: reverted GClosure related changes.

        * gclosure.c: reverted premature commit of atomic reference
        counting attempt.