Update lerna to the latest version 🚀

[greenkeeper]

Version 2.1.2 of lerna just got published.

Dependency	lerna
Current Version	2.1.1
Type	devDependency

The version 2.1.2 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 lerna.
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.

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Release Notes

v2.1.2

v2.1.2 (2017-08-29)

More bugfixes, plus support for the prepare lifecycle script found in npm 4+.

🚀 Enhancement

• #979 Run "prepare" lifecycle script during bootstrap. (@Andarist)

🐛 Bug Fix

• #992 Fix --conventional-commits recommending already released version. (@jezzay)
• #993 Fix silly level log output for --conventional-commits. (@jezzay)
• #996 Only diff package locations, not the entire repository. (@evocateur)

🏠 Internal

• #997 All command unit tests use yargs runner. (@evocateur)

Committers: 3

• Daniel Stockman (evocateur)
• Jeremy (jezzay)
• Mateusz Burzyński (Andarist)

Commits

The new version differs by 8 commits.

• 4d64a28 2.1.2
• 88b3641 Update CHANGELOG for v2.1.2
• ab3c5c5 All command unit tests use yargs runner (#997)
• 661b4f4 Only diff package locations, not the entire repository (#996)
• c638fe9 Run "prepare" lifecycle script during bootstrap (#979)
• d721b2a Fix silly level log output for --conventional-commits (#993)
• 0e6a562 Fix --conventional-commits recommending already released version (#992)
• 958a2ab ci: synchronize upgraded npm across matrix, using 5.4.0 in node v8.x

See the full diff

Not sure how things should work exactly?

There is a collection of frequently asked questions and of course you may always ask my humans.

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Your Greenkeeper Bot 🌴

[Hypnosphi]

@ndelangen should we update it in lerna.json as well?

[codecov]

Codecov Report

Merging #1768 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1768   +/-   ##
=======================================
  Coverage   21.14%   21.14%           
=======================================
  Files         252      252           
  Lines        5694     5694           
  Branches      679      689   +10     
=======================================
  Hits         1204     1204           
+ Misses       3972     3963    -9     
- Partials      518      527    +9

Impacted Files	Coverage Δ
.../src/manager/containers/CommentsPanel/dataStore.js	34.78% <0%> (ø)	⬆️
addons/storyshots/src/require_context.js	0% <0%> (ø)	⬆️
app/react-native/src/preview/story_kind.js	0% <0%> (ø)	⬆️
addons/knobs/src/components/types/Select.js	7.81% <0%> (ø)	⬆️
addons/events/src/components/Event.js	0% <0%> (ø)	⬆️
addons/info/src/components/Node.js	38.88% <0%> (ø)	⬆️
...react-native/src/manager/components/PreviewHelp.js	0% <0%> (ø)	⬆️
.../ui/src/modules/ui/components/left_panel/header.js	28.57% <0%> (ø)	⬆️
addons/knobs/src/components/types/Color.js	8% <0%> (ø)	⬆️
...ponents/left_panel/stories_tree/tree_decorators.js	33.33% <0%> (ø)	⬆️
... and 13 more

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[ndelangen]

@Hypnosphi Yeah I'll do that separately