Free the EvDocumentInfo.

Free the EvDocumentInfo.

Tue May 17 00:51:21 2005  Jonathan Blandford  <jrb@redhat.com>

        * backend/ev-document-info.h:
        * backend/ev-document.c: (ev_document_info_free): Free the
        EvDocumentInfo.

        * shell/ev-sidebar-thumbnails.c: (ev_sidebar_thumbnails_dispose),
        (clear_range), (add_range), (update_visible_range),
        (adjustment_changed_cb), (ev_sidebar_thumbnails_init),
        (ev_sidebar_thumbnails_set_document):
        * shell/ev-window.c: (ev_window_setup_document): Only render the
        visible thumbnails.  It takes an instant to render, but it uses
        much less memory.