User privilege to change his/her own password
Before version 923, only users with admintrative privilege can change passwords of any user. Now administrator can grant the privilege of changing password to any user. In Users Groups config, under Operation View-> Manage, check Self (Password) and any user in this group can change his/her own password. Administrators can not see the new password but they can always disable or delete the user, or change their privileges or groups..
Please view the following video tutorial.