Thu, 07 Jul 2011 23:55:15 +0200 wenzelm simplified make_option/dest_option;
Thu, 07 Jul 2011 22:04:30 +0200 wenzelm explicit Document.Node.Header, with master_dir and thy_name;
Thu, 07 Jul 2011 14:10:50 +0200 wenzelm explicit indication of type Symbol.Symbol;
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