regenerated library files
fixed make dependencies and added bootstrapping actions so that the sequence `make superclean; make` will work while the 'superclean' target will kill all generated files
added generated files again as anyone who wishes to run jison 'out of the box' needs those.
tweaked build target, using proper dependencies chaining
make sure all tests have the lexer/parser RESET before running the test (options:flex  would otherwise propagate across test boundaries)