Bump eslint from 3.15.0 to 4.18.2

Bumps [eslint](https://github.com/eslint/eslint) from 3.15.0 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@v3.15.0...v4.18.2) Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -33,7 +33,7 @@
  "chalk": "^1.1.3",
  "connect-history-api-fallback": "^1.3.0",
  "css-loader": "^0.26.1",
- "eslint": "^3.14.1",
+ "eslint": "^4.18.2",
  "eslint-config-standard": "^6.2.1",
  "eslint-friendly-formatter": "^2.0.7",
  "eslint-loader": "^1.6.1",