Mon, 02 Oct 2017 18:11:28 +0200 wenzelm removed pointless dependencies: done by 'spark_open';
Mon, 02 Oct 2017 16:47:46 +0200 wenzelm merged
Mon, 02 Oct 2017 16:42:12 +0200 wenzelm more documentation;
Mon, 02 Oct 2017 16:41:59 +0200 wenzelm clarified imports: prefer parent session images;
Mon, 02 Oct 2017 16:08:43 +0200 wenzelm eliminated old-style no-document imports;
Mon, 02 Oct 2017 15:51:52 +0200 wenzelm proper document;
Mon, 02 Oct 2017 15:37:46 +0200 wenzelm more compact (second-order) digest for 10^2..10^3 source files, with slightly increased risk of collisions;
Mon, 02 Oct 2017 13:45:36 +0200 wenzelm more documentation;
Mon, 02 Oct 2017 13:40:51 +0200 wenzelm tuned;
Mon, 02 Oct 2017 13:33:36 +0200 wenzelm sources_stamp refers to full sources;
Mon, 02 Oct 2017 11:43:17 +0200 wenzelm option -S for "isabelle build";
Sun, 01 Oct 2017 20:50:26 +0200 wenzelm persistent storage of imported_sources;
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