Work on semantics documentation: t+
Work on semantics documentation: t+

Ensure default for nulled start symbol is that when current where start
statement occurs in DSL source.

jeffreykegler/kollos,jeffreykegler/kollos,jeffreykegler/libmarpa,pczarn/kollos,pczarn/kollos,jeffreykegler/libmarpa,jeffreykegler/kollos,jeffreykegler/kollos,pczarn/kollos,jeffreykegler/libmarpa,jeffreykegler/libmarpa,jeffreykegler/libmarpa,pczarn/kollos,jeffreykegler/kollos,pczarn/kollos