Bump prettier from 1.13.7 to 1.14.0 (#155)

Bumps [prettier](https://github.com/prettier/prettier) from 1.13.7 to 1.14.0.
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<summary>Release notes</summary>

*Sourced from [prettier's releases](https://github.com/prettier/prettier/releases).*

> ## Prettier 1.14: YAML Support
> **[🔗 Release Notes](https://prettier.io/blog/2018/07/29/1.14.0.html)**
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<details>
<summary>Changelog</summary>

*Sourced from [prettier's changelog](https://github.com/prettier/prettier/blob/master/CHANGELOG.md).*

> # 1.14.0
> 
> [diff](prettier/prettier@1.13.7...1.14.0)
> 
> - [🔗 Release Notes](https://prettier.io/blog/2018/07/29/1.14.0.html)
</details>
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<summary>Commits</summary>

- [`9bac119`](prettier/prettier@9bac119) Release 1.14.0
- [`c2d90f1`](prettier/prettier@c2d90f1) docs(blog): 1.14 release ([#4857](https://github-redirect.dependabot.com/prettier/prettier/issues/4857))
- [`f0f45a2`](prettier/prettier@f0f45a2) chore(scripts): fix checkSchema command
- [`86614bd`](prettier/prettier@86614bd) docs(precommit): add missing [**next**](https://github.com/next) for husky
- [`0571b2b`](prettier/prettier@0571b2b) fix(glimmer): treat glimmer components as self closing tags ([#4900](https://github-redirect.dependabot.com/prettier/prettier/issues/4900))
- [`556fb3e`](prettier/prettier@556fb3e) feat(markdown): only align lists if they're already aligned ([#4893](https://github-redirect.dependabot.com/prettier/prettier/issues/4893))
- [`f65303d`](prettier/prettier@f65303d) Typo on "Kymap" ([#4901](https://github-redirect.dependabot.com/prettier/prettier/issues/4901))
- [`1c33224`](prettier/prettier@1c33224) fix(typescript): support jsx spread child ([#4885](https://github-redirect.dependabot.com/prettier/prettier/issues/4885))
- [`65d65a5`](prettier/prettier@65d65a5) fix(glimmer): better formatting of boolean attributes (and also ...attributes...
- [`505e082`](prettier/prettier@505e082) fix(glimmer): add softline in nested block statements ([#4896](https://github-redirect.dependabot.com/prettier/prettier/issues/4896))
- Additional commits viewable in [compare view](prettier/prettier@1.13.7...1.14.0)
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