Upgrade optipng to version 2.0.0

[depfu]

Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ optipng (^1.0.0 → ^2.0.0) · Repo

Commits

See the full diff on Github. The new version differs by 43 commits:

• 2.0.0
• Use const instead of var
• Fix up test, move it nearer to the other error handling ones
• Avoid calling end of undefined right after
• Fix lint
• Throw an error when closing a stream that hasn't been started yet.
• Merge pull request #19 from papandreou/depfu/update/npm/optipng-bin-5.0.0
• Update optipng-bin to version 5.0.0
• Move coveralls to the after_success step on Travis
• npm run {travis => ci}
• Replace istanbul with nyc
• Merge pull request #18 from papandreou/depfu/update/npm/sinon-7.0.0
• Update sinon to version 7.0.0
• Merge pull request #17 from papandreou/depfu/update/npm/unexpected-stream-3.0.0
• Update unexpected-stream to version 3.0.0
• Update coveralls to version 3.0.2
• Merge pull request #15 from papandreou/depfu/update/npm/mocha-5.2.0
• Use Buffer.from instead of new Buffer in test suite, avoiding deprecation warning
• Fix class
• lebab --transform class --replace lib
• Merge pull request #16 from papandreou/depfu/update/npm/sinon-6.3.5
• Don't run lint at the end of npm test
• Update sinon to version 6.3.5
• Stop testing internals, fixing a test
• Update mocha to version 5.2.0
• Fix lint command
• eslint --fix .
• for transform in arrow arrow-return let obj-shorthand obj-method ; do for dir in lib test; do lebab --transform $transform --replace $dir; done ; done
• Remove empty lines between requires
• eslint --fix .
• Replace jshint with eslint + prettier setup
• Drop node.js 4 support
• Travis: Run with node.js 10 instead of 9
• Extra guard against missing tempFile prop
• Add .npmrc
• Merge remote-tracking branch 'remotes/origin/depfu/update/npm/optipng-bin-4.0.0'
• Switch to ^ version ranges
• Merge remote-tracking branch 'origin/depfu/update/npm/memoizeasync-1.1.0'
• Avoid unlinking the temporary file twice in some cases
• Update optipng-bin to version 4.0.0
• Update memoizeasync to version 1.1.0
• Travis: Ditch old before_install, only run on node 4, 6, 8, and 9
• Update author's email

---

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[coveralls]

Coverage decreased (-0.2%) to 92.241% when pulling 146273c on depfu/update/npm/optipng-2.0.0 into bb777a5 on master.

[coveralls]

Coverage decreased (-0.2%) to 92.241% when pulling 146273c on depfu/update/npm/optipng-2.0.0 into bb777a5 on master.