Bump react-dom from 16.7.0 to 16.8.1

[dependabot-preview]

Bumps react-dom from 16.7.0 to 16.8.1.

Release notes

Sourced from react-dom's releases.

v16.8.0

React

• Add Hooks — a way to use state and other React features without writing a class. ([acdlite](https://github.com/acdlite) et al. in #13968)
• Improve the useReducer Hook lazy initialization API. ([acdlite](https://github.com/acdlite) in #14723)

React DOM

• Bail out of rendering on identical values for useState and useReducer Hooks. ([acdlite](https://github.com/acdlite) in #14569)
• Use Object.is algorithm for comparing useState and useReducer values. ([Jessidhia](https://github.com/Jessidhia) in #14752)
• Don’t compare the first argument passed to useEffect/useMemo/useCallback Hooks. ([acdlite](https://github.com/acdlite) in #14594)
• Support synchronous thenables passed to React.lazy(). ([gaearon](https://github.com/gaearon) in #14626)
• Render components with Hooks twice in Strict Mode (DEV-only) to match class behavior. ([gaearon](https://github.com/gaearon) in #14654)
• Warn about mismatching Hook order in development. ([threepointone](https://github.com/threepointone) in #14585 and [acdlite](https://github.com/acdlite) in #14591)
• Effect clean-up functions must return either undefined or a function. All other values, including null, are not allowed. [acdlite](https://github.com/acdlite) in #14119

React Test Renderer and Test Utils

• Support Hooks in the shallow renderer. ([trueadm](https://github.com/trueadm) in #14567)
• Fix wrong state in shouldComponentUpdate in the presence of getDerivedStateFromProps for Shallow Renderer. ([chenesan](https://github.com/chenesan) in #14613)
• Add ReactTestRenderer.act() and ReactTestUtils.act() for batching updates so that tests more closely match real behavior. ([threepointone](https://github.com/threepointone) in #14744)

ESLint Plugin: React Hooks

• Initial release. ([calebmer](https://github.com/calebmer) in #13968)
• Fix reporting after encountering a loop. ([calebmer](https://github.com/calebmer) and [Yurickh](https://github.com/Yurickh) in #14661)
• Don't consider throwing to be a rule violation. ([sophiebits](https://github.com/sophiebits) in #14040)

Changelog

Sourced from react-dom's changelog.

16.8.1 (February 6, 2019)

React DOM and React Test Renderer

• Fix a crash when used together with an older version of React. ([bvaughn](https://github.com/bvaughn) in #14770)

React Test Utils

• Fix a crash in Node environment. ([threepointone](https://github.com/threepointone) in #14768)

16.8.0 (February 6, 2019)

React

• Add Hooks — a way to use state and other React features without writing a class. ([acdlite](https://github.com/acdlite) et al. in #13968)
• Improve the useReducer Hook lazy initialization API. ([acdlite](https://github.com/acdlite) in #14723)

React DOM

• Bail out of rendering on identical values for useState and useReducer Hooks. ([acdlite](https://github.com/acdlite) in #14569)
• Use Object.is algorithm for comparing useState and useReducer values. ([Jessidhia](https://github.com/Jessidhia) in #14752)
• Don’t compare the first argument passed to useEffect/useMemo/useCallback Hooks. ([acdlite](https://github.com/acdlite) in #14594)
• Support synchronous thenables passed to React.lazy(). ([gaearon](https://github.com/gaearon) in #14626)
• Render components with Hooks twice in Strict Mode (DEV-only) to match class behavior. ([gaearon](https://github.com/gaearon) in #14654)
• Warn about mismatching Hook order in development. ([threepointone](https://github.com/threepointone) in #14585 and [acdlite](https://github.com/acdlite) in #14591)
• Effect clean-up functions must return either undefined or a function. All other values, including null, are not allowed. [acdlite](https://github.com/acdlite) in #14119

React Test Renderer and Test Utils

• Support Hooks in the shallow renderer. ([trueadm](https://github.com/trueadm) in #14567)
• Fix wrong state in shouldComponentUpdate in the presence of getDerivedStateFromProps for Shallow Renderer. ([chenesan](https://github.com/chenesan) in #14613)
• Add ReactTestRenderer.act() and ReactTestUtils.act() for batching updates so that tests more closely match real behavior. ([threepointone](https://github.com/threepointone) in #14744)

ESLint Plugin: React Hooks

• Initial release. ([calebmer](https://github.com/calebmer) in #13968)
• Fix reporting after encountering a loop. ([calebmer](https://github.com/calebmer) and [Yurickh](https://github.com/Yurickh) in #14661)
• Don't consider throwing to be a rule violation. ([sophiebits](https://github.com/sophiebits) in #14040)

Commits

• 11565a2 Revert "Scheduler.unstable_next (#14756)"
• f2e2637 Backwards compat fix for ReactCurrentDispatcher on older react versions (#14770)
• 1107b96 [TestUtils.act] warn when using TestUtils.act in node (#14768)
• 0975ea3 eslint-plugin-react-hooks v1.0.0
• d827445 Add 16.8.0 changelog and update some READMEs (#14692)
• bc9818f Scheduler.unstable_next (#14756)
• b5398a9 Add 16.8.0 changelog and update some READMEs (#14692)
• ce6ecd3 Add 16.8.0 changelog and update some READMEs (#14692)
• 008a2ab 16.8.0
• d1326f4 [TestUtils.act] fix return result checking (#14758)
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #71.