Wed, 01 Apr 2015 17:58:23 +0200 wenzelm ISABELLE_JAVA_SYSTEM_OPTIONS for scala REPL;
Wed, 01 Apr 2015 17:20:52 +0200 wenzelm more reactive interrupts;
Wed, 01 Apr 2015 16:24:38 +0200 wenzelm added isabelle build option -x, to exclude sessions;
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