Fix performance bug of diskmanager; fix the msg server JDO object detach bug.
Add SFile/SFileLocation state change message notification for gbase and other users.
Stable version for EXPO.
Commit file state/repnr/onlineoffline change msg notification(1306/1307/1308).
Add backupQ timeout interval to invalid longliving BE entry;
Add void file check to clear non-referenced files;
Add node state change msg notification;
Send file replication location change notification;
merge macan.