Thu, 01 Sep 2011 23:08:42 +0200 wenzelm amended last_common, if that happens to the very last entry (important to load HOL/Auth, for example);
Thu, 01 Sep 2011 22:29:57 +0200 wenzelm more redable Document.Node.toString;
Thu, 01 Sep 2011 16:58:41 +0200 wenzelm sort wrt. theory name;
Thu, 01 Sep 2011 16:58:03 +0200 wenzelm modernized theory name;
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