self.statement_parser was changed to self._statement_parser even though Docs suggest to use it.

[NekoShinobi]

self.statement_parser was changed to self._statement_parser, but in the docs, we have put it as a part of the processing hook (see Postparsing Hooks section)

[tleonhardt]

@xNinjaKittyx Good catch.

When I was working on minimizing the public API, I thought there wasn't a valid use case for developers using cmd2 to make use of the StatementParser instance inside a cmd2.Cmd instance. However, I had not considered the case of developing post-parsing hooks and the fact that we intentionally made Statement instances immutable (and even if we hadn't manually altering one would be fraught with peril unless done correctly. This is a valid use case, and heck we even documented it ;-)

So this was a mistake on my part. I apologize for any inconvenience. I'll restore it to the previous name and we should be putting out a release within the next couple weeks.