- Split INITIALIZING state into Init+Bind+Connect
- Remove PAUSE state
- Convert state/transitions to enum classes (CamelCase)
- Transition to a state only once previous handler is complete
- Add CompleteInit transition to notify Initializing state
that config updates are complete
- Deprecate WaitForEndOfState(transition) in favor of
WaitForState(state)/WaitForNextState()
- Update tests/plugins to new APIs
- Deprecate CheckCurrentState() in favor of NewStatePending()
* Simplify the code
* Drop Boost.MSM dependency
* Drop threaded execution
* Support deferred state changes
* Monitor state changes/queues via callbacks
