Tue, 16 Jan 2018 09:08:06 +0100 wenzelm tuned signature;
Mon, 15 Jan 2018 23:03:01 +0100 wenzelm clarified markup;
Mon, 15 Jan 2018 22:46:04 +0100 wenzelm more uniform support for formal comments in outer syntax, notably \<^cancel> and \<^latex>;
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