Bump jshint from 2.12.0 to 2.13.0

Bumps [jshint](https://github.com/jshint/jshint) from 2.12.0 to 2.13.0.
- [Release notes](https://github.com/jshint/jshint/releases)
- [Changelog](https://github.com/jshint/jshint/blob/2.13.0/CHANGELOG.md)
- [Commits](https://github.com/jshint/jshint/compare/2.12.0...2.13.0)

---
updated-dependencies:
- dependency-name: jshint
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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