push_lhs command now returns the right lhs id's
push_lhs command now returns the right lhs id's

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