src/Pure/Thy/sessions.scala
2016-03-24 wenzelm 2016-03-24 proper SHA1 digest as annex to heap file: Poly/ML reads precise segment length;
2016-03-16 wenzelm 2016-03-16 support for Poly/ML heap hierarchy, which saves a lot of disk space;
2016-03-16 wenzelm 2016-03-16 clarified signature;
2016-03-16 wenzelm 2016-03-16 tuned signature;
2016-03-15 wenzelm 2016-03-15 find heaps uniformly via Sessions.Store; tuned;
2016-03-15 wenzelm 2016-03-15 clarified modules;
2016-03-15 wenzelm 2016-03-15 clarified modules;