chore(deps): update dependency mocha to v5.2.0

[renovate[bot]]

This Pull Request updates dependency mocha from v5.1.1 to v5.2.0

Release Notes

### [`v5.2.0`](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md#​520--2018-05-18) [Compare Source](https://github.com/mochajs/mocha/compare/v5.1.1...v5.2.0) #### :tada: Enhancements - [#​3375]: Add support for comments in `mocha.opts` ([@​plroebuck]) #### :bug: Fixes - [#​3346]: Exit correctly from `before` hooks when using `--bail` ([@​outsideris]) #### :book: Documentation - [#​3328]: Mocha-flavored [API docs](https://mochajs.org/api/)! ([@​Munter]) #### :nut_and_bolt: Other - [#​3330]: Use `Buffer.from()` ([@​harrysarson]) - [#​3295]: Remove redundant folder ([@​DavNej]) - [#​3356](`https://github.com/mochajs/mocha/pull/3356`): Refactoring ([@​plroebuck]) [#​3375]: `https://github.com/mochajs/mocha/pull/3375` [#​3346]: `https://github.com/mochajs/mocha/pull/3346` [#​3328]: `https://github.com/mochajs/mocha/pull/3328` [#​3330]: `https://github.com/mochajs/mocha/pull/3330` [#​3295]: `https://github.com/mochajs/mocha/pull/3295` [@​plroebuck]: https://github.com/plroebuck [@​harrysarson]: https://github.com/harrysarson [@​outsideris]: https://github.com/outsideris [@​Munter]: https://github.com/Munter ---

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This PR has been generated by Renovate Bot.

[coveralls]

Coverage remained the same at 100.0% when pulling 17bb6c170ee7574500a12101b7365869491a0567 on renovate/mocha-5.x into bd5251ddc318349400d6ca30d254c6938f54202b on master.

[coveralls]

Coverage remained the same at 100.0% when pulling 17bb6c170ee7574500a12101b7365869491a0567 on renovate/mocha-5.x into bd5251ddc318349400d6ca30d254c6938f54202b on master.