Please review: [Bug 182507] clear-password mod from replica is discarded before changelogged

[Noriko Hosoi]

https://bugzilla.redhat.com/show_bug.cgi?id=182507

https://bugzilla.redhat.com/attachment.cgi?id=467113&action=diff
https://bugzilla.redhat.com/attachment.cgi?id=467113&action=edit

Description:
Replication drops unhashed passwords which is necessary for
the AD password sync.  This patch allows the passwords replicated
and introduces a method to encrypt logs in the changelog.

See also http://directory.fedoraproject.org/wiki/Changelog_Encryption

Thanks,
--noriko