Update React to 16.1.0

[Hypnosphi]

Release notes
Example app seems to work OK

I would also consider hoisting all those React devDependencies to root package manualy, so that they are more manageable. app/vue (and other non-react apps) still need direct dependencies to React though.

@storybooks/team, what do you think?

[codecov]

Codecov Report

Merging #2285 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2285   +/-   ##
=======================================
  Coverage   22.14%   22.14%           
=======================================
  Files         268      268           
  Lines        5893     5893           
  Branches      699      712   +13     
=======================================
  Hits         1305     1305           
+ Misses       4066     4052   -14     
- Partials      522      536   +14

Impacted Files	Coverage Δ
app/vue/src/server/config/babel.js	0% <0%> (-100%)	⬇️
app/vue/src/server/babel_config.js	0% <0%> (-77.42%)	⬇️
lib/ui/src/modules/ui/routes.js	0% <0%> (ø)	⬆️
app/react-native/src/preview/story_kind.js	0% <0%> (ø)	⬆️
addons/storyshots/src/require_context.js	0% <0%> (ø)	⬆️
addons/knobs/src/components/PropForm.js	9.09% <0%> (ø)	⬆️
addons/info/src/components/Props.js	37.2% <0%> (ø)	⬆️
lib/ui/src/modules/ui/configs/handle_keyevents.js	33.33% <0%> (ø)	⬆️
...es__/update-addon-info/update-addon-info.output.js	0% <0%> (ø)	⬆️
lib/components/src/navigation/menu_link.js	0% <0%> (ø)	⬆️
... and 13 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 6897edb...eb6083f. Read the comment docs.

[danielduan]

Please test the crna react-native as well. React 16 isn't officially supported by crna, let alone 16.1: https://github.com/react-community/create-react-native-app/blob/master/VERSIONS.md

[Hypnosphi]

This PR doesn't actually update anything in crna example. In app/react-native, it's devDependencies, so they don't get installed in apps, either.

I think that, given the concerns you brought up, we shouldn't update React in CRNA example in the same PR.

Any thoughts about the hoisting proposal?

[Hypnosphi]

Anyway, I checked that CRNA example works on this branch

[Hypnosphi]

@ndelangen how do you feel about moving all the react devDeps to root?