Update sigver to the latest version 🚀

Version 13.0.0 of sigver just got published.

Dependency	sigver
Current Version	12.0.1
Type	devDependency

The version 13.0.0 is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of sigver. Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

Release Notes

v13.0.0

13.0.0 (2017-04-05)

Bug Fixes

channel: after join the channel did not unsubscribe from opener (6b258cfe)

Breaking Changes

From now the server send ping periodically to joining too and not only to opener.

(6b258cfe)

Commits

The new version differs by 1 commits .

6b258cf fix(channel): after join the channel did not unsubscribe from opener

See the full diff.

Not sure how things should work exactly?

There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html) and of course you may always [ask my humans](https://github.com/greenkeeperio/greenkeeper/issues/new).

Your Greenkeeper Bot :palm_tree:

coast-team / netflux