Sun, 13 Feb 2011 17:45:21 +0100 wenzelm more explicit exit due to failed etc/settings -- normally return code 0=true and 1=false could be tolerated, but bash syntax errors also return 1;
Sun, 13 Feb 2011 17:29:44 +0100 wenzelm eliminated somewhat obsolete warning -- former "$HOME/Isabelle" vs. "$HOME/isabelle" no longer exist;
Sun, 13 Feb 2011 17:19:43 +0100 wenzelm tuned;
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