export actions on demand

otherwise it's hard to subclass actions
do_flat_to_list action
bump version, 0.05
make recognizer argument in recognize
upgrade M::I
incompatible change: recognizer should be argument of recognize
change log
do_rule_list action
small doc updates
add check option for tokens
longest_expected option for lexer - longest acceptable tokens matching
regen README
bump Marpa version because of a bug in how alternative treats refs to undef