chore(dependencies): Bump eslint from 4.13.1 to 4.15.0

Bumps [eslint](https://github.com/eslint/eslint) from 4.13.1 to 4.15.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v4.13.1...v4.15.0)

package.json

@@ -36,7 +36,7 @@
     "commitizen": "^2.9.6",
     "core-js": "^2.5.3",
     "cz-conventional-changelog": "^2.1.0",
-    "eslint": "^4.13.1",
+    "eslint": "^4.15.0",
     "eslint-config-airbnb-base": "^12.1.0",
     "eslint-config-prettier": "^2.9.0",
     "eslint-plugin-import": "^2.5.0",