* commit '37677849998e6c9a39afe0a730b2f0131a371f3b': Rename HierarchicalStateMachine and HierarchicalState to StateMachine and State.
* commit '37677849998e6c9a39afe0a730b2f0131a371f3b': Rename HierarchicalStateMachine and HierarchicalState to StateMachine and State.