Log Message:
Update gnumeric to 1.0.13.  Notable changes include:
        * lotus-123 : fix incorrect import of logarithmic functions
            log -> log instead of log10
            ln -> ln   instead of log
        * XL95 export : Use unquoted names in externsheets
        * Fix a problem with the euro/yen/pound symbols
          http://bugzilla.gnome.org/show_bug.cgi?id=103571
        * Back port fix
        * Backport morten's fix for latex export problem
        * Use even blunter instrument on xml importer.