Update zypp-po.tar.bz2
Update zypp-po.tar.bz2
Update zypp-po.tar.bz2
Handle dangling update script symlinks in instsys. (bnc#803751)

An absolute symlink as update-script will dangle within the instsys but
is nevertheless chroot executable.
changes 12.8.1 (0)
Add class IPMutex: Common interprocess mutex
Hack: Ignore global lock if $ZYPP_READONLY_HACK
Move all implementation into RepoManager::Impl
Rephrase error message if 'lsof' is not installed (bnc#694427)
rebuild