- run tests on every automata stored as file examples/automaton/aconversion.test.*.xml

Adds automaton printer, changes xml (changed current/next into from/to in transitions), removes old xml printing code

Adds GrammarFactory - for creating grammars from files or input strings, GrammarPrinter - prints grammar into XML, grammar example

Adds unknown automaton, removes parsers for FSM, PDA and TM (replaced by single parser for UnknownAutomaton)