chore: update ESLint to v5

Update ESLint to the current v5, and update eslint-config-airbnb-base to 
a compatible version.

Author: Arcanemagus

package.json

@@ -59,8 +59,8 @@
     "@commitlint/config-conventional": "^7.0.1",
     "@commitlint/travis-cli": "^7.0.0",
     "@semantic-release/apm-config": "^5.0.2",
-    "eslint": "^4.6.0",
-    "eslint-config-airbnb-base": "^12.0.0",
+    "eslint": "^5.4.0",
+    "eslint-config-airbnb-base": "^13.1.0",
     "eslint-plugin-import": "^2.7.0",
     "husky": "^0.14.3",
     "jasmine-fix": "^1.3.1",