add secret slot as %persistent-key into <kahua-persistent-base>, which is binded at find-kahua-instance.
add secret slot as %persistent-key into <kahua-persistent-base>,
which is binded at find-kahua-instance.


git-svn-id: 5612f2e019210c57871f2dc3f2fceb099e3c14ff@1449 4e392e78-dc3f-dc11-8fd5-00188bfc9ac4

kahua/Kahua,kahua/Kahua