[Merge] ~mwhudson/livecd-rootfs/+git/livecd-rootfs:preserve-germinate into livecd-rootfs:ubuntu/master

[Michael Hudson-Doyle]

The proposal to merge ~mwhudson/livecd-rootfs/+git/livecd-rootfs:preserve-germinate into livecd-rootfs:ubuntu/master has been updated.

Commit message changed to:

auto/config: preserve germinate-output directory when removing config

Germinate doesn't take very long at all to run but downloading the
indices it operates on can take a while and nothing else in auto/config
does so not doing it every time you run "lb config" can be a real time
saver.

The code that invokes germinate already checked if the output was
already there but it was unconditionally deleted by the time control got
to that point.

For more details, see:
https://code.launchpad.net/~mwhudson/livecd-rootfs/+git/livecd-rootfs/+merge/423207
-- 
Your team Ubuntu Core Development Team is requested to review the proposed merge of ~mwhudson/livecd-rootfs/+git/livecd-rootfs:preserve-germinate into livecd-rootfs:ubuntu/master.