Change option name: from inmemoryBlockOnConsumed to inMemoryBlockOnConsumed
Currently the API uses `inmemoryBlockOnConsumed` as an option, but it would be better if `inMemoryBlockOnConsumed`.

It is obviously more correct (camelCase), easier to read and it also does not give spelling error with spelling errors tools such https://github.com/streetsidesoftware/cspell

Any chance both `inmemoryBlockOnConsumed` and `inMemoryBlockOnConsumed` could be supported, where `inMemoryBlockOnConsumed` is mentioned in documentation and also takes precedence? I.e. the old name remains usable for backward compability.