API C Club.RequestMoreMessagesBefore

Needs summary.
 alreadyHasMessages = C_Club.RequestMoreMessagesBefore(clubId, streamId [, messageId, count])
==Arguments==
:;clubId:
:;streamId:
:;messageId:structure - ClubMessageIdentifier (optional)
:;count:
==Returns==
:;alreadyHasMessages:
==Details==
* Call this when the user scrolls near the top of the message view, and more need to be displayed. The history will be downloaded backwards (newest to oldest).
==Patch changes==