State-machine-py

lines_getter を StateMachine のプロパティー化

old: state_machine.start(self, next_state_name, lines_getter)
new: state_machine.start(self, next_state_name)

old: state_machine.leave_and_loop(self, lines_getter)
new: state_machine.leave_and_loop(self)

entry(), on_entry(), exit(), on_exit() の引数を Requestオブジェクト に変更

state.leave(...) を廃止。 state.exit(...) に統合