[Merge] ~tobijk/livecd-rootfs/+git/livecd-rootfs:feature/parallelization-snap-version-fixing into livecd-rootfs:ubuntu/master

[Balint Reczey]

For the record the "snap" command is also planned to support coherence in a similar way and then we can revert to using "snap" instead of "snap-tool".

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https://code.launchpad.net/~tobijk/livecd-rootfs/+git/livecd-rootfs/+merge/360986
Your team Ubuntu Core Development Team is requested to review the proposed merge of ~tobijk/livecd-rootfs/+git/livecd-rootfs:feature/parallelization-snap-version-fixing into livecd-rootfs:ubuntu/master.