Update git submodules

* Update plugins/replication from branch 'master'
  to 5c3414d99c36c293e2119191ae9bd0aca5b46380
  - ProjectRepairer: Add a --copy-loose-objects repair action
    
    Add a COPY_LOOSE_OBJECTS action, exposed as '--copy-loose-objects',
    rsyncing the two hex character fanout directories under objects/. The
    include patterns keep rsync out of pack/, info/ and their siblings.
    
    The action is declared ahead of COPY_PACKS, so when both are selected
    loose objects are copied first. '--full' now covers both.
    
    Change-Id: I9c3d12182bdc5fa9da662269d8681db174057f21
    
  - ProjectRepairer: Refactor to select actions through an enum
    
    repair() takes a 'copyPacks' boolean, which can only describe the one
    thing it knows how to do. A second kind of repair would mean a second
    boolean at every call site, with the order the two run in implicit in
    how repair() tests them.
    
    Take a collection of Action values instead. Individual flags are kept in
    flag order. '--full' and the no-flag default use Action.all() so actions
    run in enum declaration order. Action has only COPY_PACKS, so behaviour
    is unchanged.
    
    Change-Id: Ie7c0d9af40cab893a01a754bc984b8593ff6a5bc
    
  - ProjectRepairer: Refactor to extract the repository lookup
    
    copyPackTo() validates the destination URI and opens the repository to
    locate it on disk before copying anything, neither of which has to do
    with packs.
    
    Move both into objectsDir(), which reports the repository's objects
    directory, or nothing if the project cannot be repaired at that
    destination. What is left is copyPacksTo(), taking the directory to
    copy from. The now trivial copyInOrder() folds into it.
    
    Change-Id: I2d1ba0a23671d6db115f18a35420f4c04a24c0ec
    
  - ProjectRepairer: Refactor copy() to take a destination dir
    
    buildCopyDestination() appends objects/pack/ to the remote path
    itself, so copy() can only ever populate a destination's pack
    directory.
    
    Pass the remote subdirectory in instead, with the pack callers naming
    PACK_DIR. The rsync commands produced are unchanged.
    
    Change-Id: I7bf05966dd95b7827864f2ae5a0a39fe9ca050eb
    
  - ProjectRepairer: Report an interrupted copy as InterruptedIOException
    
    copy() declares InterruptedException, but the only one that escapes
    comes from the halt() call in its own catch block, leaving copyInOrder()
    to catch an interrupt it takes no part in. The interrupt copy() does
    take part in becomes a -1 exit code, and as throwing
    InterruptedException clears the interrupt status, nothing above can tell
    an interrupted transfer from a failed one, or that the repair was
    cancelled at all.
    
    Absorb the halt() interrupt where it happens, and report the copy's own
    interrupt as InterruptedIOException, which is what java.io raises when
    an interrupt terminates a transfer. It unwinds the repair, so the copies
    and destinations left after a cancel are skipped instead of running to
    completion.
    
    The SSH command lets it escape, which BaseCommand already treats as the
    client having dropped off, exiting 127 without logging. Auto-repair logs
    the interrupt and skips its follow-up replication.
    
    Change-Id: Ie61e0329aaa3131c8ac1f8b4932e57e48c5e5e0b