ObjectScript Code

re #377: creating branch OBJS377

tweak exception handling a bit to get a better error message

re #376: and now deal with RegExp

re #376: oh, opps... thats why it was having probs with 'catch' statements

re #376: checkpoint... doesn't quite work at the moment, with some VerifyError possibly related to 'catch' statements

re #376: generate initIl code for OExactNumber, OInexactNumber, smit tables, etc

re #376: creating branch OBJS376

treat a lexical error as a regular ParseException, because it is just a sort of parse error

fix .cache problem

merging OBJS374 back to trunk (fixes #374)