-signals:
- void lastSeenMsgSet(BufferId buffer, const MsgId &msgId);
- void setLastSeenMsgRequested(BufferId buffer, const MsgId &msgId);
-
- void removeBufferRequested(BufferId buffer);
- void bufferRemoved(BufferId buffer);
-
- void renameBufferRequested(BufferId buffer, QString newName);
- void bufferRenamed(BufferId buffer, QString newName);