Sat, 03 Mar 2018 21:38:27 +0100 wenzelm more compact ML_Statistics, to make build_status work with less than 2GB heap;
Sat, 03 Mar 2018 17:37:33 +0100 wenzelm retain latest ml_stats (amending e76c6cb0d461);
Sat, 03 Mar 2018 16:15:21 +0100 wenzelm accomodate smaller build machine;
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