State machines implemented
Generated code is NOT covered by the GPL
removed some redundant code when we know conditions are always true
more work on actions
added 'not' operator
added some documentation
Added messages at document level.
Fixed defects in enumerations, logicals, and fields containing hyphens.
Fix some compile errors in the generated code
Finish changes to the second test schema
Add some checks for user errors to the 'value' code
Convert some documentation to doxygen
remove old persistence classes
add example of actions to test (not complete)