isabelle: Changelog

wenzelm [Sat, 03 Sep 2011 21:15:35 +0200] rev 44676

Document.removed_versions on Scala side;

wenzelm [Sat, 03 Sep 2011 19:47:31 +0200] rev 44675

discontinued predefined empty command (obsolete!?);

wenzelm [Sat, 03 Sep 2011 19:39:16 +0200] rev 44674

discontinued global execs: store exec value directly within entries; simplified entries: no extra copy of command_id;

wenzelm [Sat, 03 Sep 2011 18:08:09 +0200] rev 44673

Document.remove_versions on ML side;

wenzelm [Sat, 03 Sep 2011 12:31:27 +0200] rev 44672

some support to prune_history; clarified signature: recent_stable is supposed to be always defined;

huffman [Fri, 02 Sep 2011 16:58:00 -0700] rev 44671

merged

huffman [Fri, 02 Sep 2011 16:57:51 -0700] rev 44670

speed up extremely slow metis proof of Sup_real_iff (reducing total HOL compilation time by 5% on my machine)

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