Apache Commons Codec 1.9 at least requires Java 1.6 and non debug version

Change-Id: Ie7834a908c8b19cfa46d71ff6fd712e10bbe8fbb
Reviewed-on: https://gerrit.libreoffice.org/12115
Tested-by: LibreOffice gerrit bot <gerrit@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>