Update prettier to the latest version 🚀

[greenkeeper]

Version 0.15.0 of prettier just got published.

Dependency	prettier
Current Version	0.14.1
Type	devDependency

The version 0.15.0 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 prettier.
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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Commits

The new version differs by 17 commits .

• b040be2 0.15.0
• 5042168 Make comments inside of MemberExpression look good (#556)
• b6c9e42 Whitelist UnaryExpression for parentless objects (#545)
• e56fd38 Make comments between if & else to look good (#544)
• be8f13d [JSX] Handle non-breaking space (#557)
• 6c7837b Fix small typo on Jetbrains section (#552)
• 7587b5a Remove spurious test.js
• d0bc299 Reimplement MemberExpression printing (#469)
• 410e75d Update snapshot tests from conflicting PRs
• d3fa519 Break nested calls (#517)
• 8bc3c61 Preserve next line with trailing comment (#535)
• f5291e2 Fix Jetbrains example screenshot url. (#534)
• 7148184 Print \x and \u escapes in strings and regexes lowercase (#522)
• ea59718 Add 0.14.1 to CHANGELOG (#525)
• 3155acb Update bracketSpacing comment to say it's about {} (#529)

There are 17 commits in total. 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 🌴