Keep a weak reference on proxy->page_cache so that we dont try to

Keep a weak reference on proxy->page_cache so that we dont try to

2005-05-10  Marco Pesenti Gritti  <mpg@redhat.com>

        * shell/ev-page-action.c: (ev_page_action_widget_set_page_cache),
        (ev_page_action_widget_finalize),
        (ev_page_action_widget_class_init), (update_page_cache):

        Keep a weak reference on proxy->page_cache so that we
        dont try to disconnect the signal if the object is already
        gone. Maybe there is a better way to cleanup reference handling
        in page action though...