Bump eslint from 3.7.1 to 4.18.2 (#432)

Bumps [eslint](https://github.com/eslint/eslint) from 3.7.1 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@v3.7.1...v4.18.2)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -25,7 +25,7 @@
     "babel-preset-react": "^6.24.1",
     "babel-preset-stage-0": "^6.24.1",
     "css-loader": "^0.28.11",
-    "eslint": "3.7.1",
+    "eslint": "4.18.2",
     "eslint-plugin-react": "^7.7.0",
     "ng-admin": "1.0.0-beta3",
     "node-sass": "^4.8.3",