Update attributes of old format keychain items automatically. Use methods to get and set keychain passwords.
Update attributes of old format keychain items automatically. Use methods to get and set keychain passwords.

git-svn-id: 765db44a9620ed55f4f8addfd3c14fe8cd57f6bb@7030 0fceea05-a30d-0410-8a8b-80ef821fb0a1

nanoant/Skim,nanoant/Skim,nanoant/Skim,nanoant/Skim,nanoant/Skim