Bump eslint from 3.16.1 to 4.18.2

Bumps [eslint](https://github.com/eslint/eslint) from 3.16.1 to 4.18.2.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v3.16.1...v4.18.2)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -41,7 +41,7 @@
         "babel-preset-env": "^1.1.8",
         "codecov": "^3.6.1",
         "cross-env": "^3.1.4",
-        "eslint": "^3.16.1",
+        "eslint": "^4.18.2",
         "eslint-config-airbnb": "^14.1.0",
         "eslint-plugin-import": "^2.2.0",
         "eslint-plugin-jsx-a11y": "^4.0.0",