Bug 829213 - unhashed#user#password visible after changing password https://bugzilla.redhat.com/show_bug.cgi?id=829213
    
    Bug 830001 - unhashed#user#password visible after changing password [rhel-6.3]
    https://bugzilla.redhat.com/show_bug.cgi?id=830001
    
    Bug Description: Deref still retrieved unhashed password.
    
    Fix Description: Added code to Deref plugin to check the deref attribute.
    If it is unhashed password, skip it.
    (cherry picked from commit 26b5121d84232cf453fa917f11ba6518a40358ea)
    (cherry picked from commit 9e15a73380e32947f08e2d8cc3bce87f467fab80)