[Merge] ~liushuyu-011/ubuntu-seeds/+git/i386:oracular into ~ubuntu-core-dev/ubuntu-seeds/+git/i386:oracular

[Steve Langasek]

Review: Approve

Note that this seed only works for binary packages that already exist on i386. For bootstrapping we will still have to run the manual archive admin script for each version.
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https://code.launchpad.net/~liushuyu-011/ubuntu-seeds/+git/i386/+merge/471489
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