Update replication plugin to latest master revision
Update replication plugin to latest master revision

2a24edf - PushOne: Lazy log refs to push
4ee7331 - PushOne: Improve format of log of references to be pushed
937b403 - Don't lose state when there's a pending push to the same ref
2c042f9 - ReplicationTasksStorage: Handle DirectoryIteratorExceptions (part 2)

Change-Id: I254376f43b2986f6befe189ab2e8c3266ed94a19

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