chore(package): update eslint to version 5.16.0

Closes #2

Author: greenkeeper[bot]

package.json

@@ -52,7 +52,7 @@
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-stage-1": "^6.24.1",
     "coveralls": "^3.0.1",
-    "eslint": "^4.19.1",
+    "eslint": "^5.16.0",
     "istanbul": "^0.4.5",
     "mocha": "^5.2.0",
     "mocha-lcov-reporter": "^1.3.0",