Otherwise swarm is going to attempt resizing the cluster and timeout

As per discussion on irc, we already used GNU-style versioning system
for release candidates, so it makes sense to use it for develop builds as well.

If fallback url doesn't have a pack.yml file, one from the source will
be used

Otherwise we end up with suggestion on the same level as the childs

Markdown is a fuck…

This version includes a couple of fixes, adds Gun and Mint adapters and
removes 0.x -> 1.0 config migrator, which for some reason fails under
certain conditions. I had to set `override: true` because Quack pins
Tesla to `1.2.0`, but I have looked through the source code and verified
that updating Tesla doesn't break anything there.

This version uses a different locking mechanism, which gets rid of
`WARNING:  you don't own a lock of type ShareLock` log spam

This reverts commit fe7fd331, reversing
changes made to 4fabf83a.

This reverts merge request !1653

tzdata 1.0.0 requires Elixir 1.8.0, but we target 1.7. Fortunately
tzdata issues bugfix releases for pre-1.8.0 version.

when the current branch does not have commits ahead of tag/checked out on a tag