2010-12-29 wenzelm 2010-12-29 explicit file specifications -- avoid secondary load path;
2010-04-08 bulwahn 2010-04-08 added imperative SAT checker; improved headers of example files; adopted IsaMakefile
2009-10-17 wenzelm 2009-10-17 eliminated hard tabulators, guessing at each author's individual tab-width; tuned headers;
2009-09-15 haftmann 2009-09-15 restored code generation for OCaml
2009-03-23 haftmann 2009-03-23 moved Imperative_HOL examples to Imperative_HOL/ex