chore(package): update eslint to version 4.10.0

Closes #40

Author: greenkeeper[bot]

package.json

@@ -26,7 +26,7 @@
     "chai": "^3.5.0",
     "conventional-changelog-lint": "^1.0.1",
     "conventional-github-releaser": "^1.1.3",
-    "eslint": "^3.2.2",
+    "eslint": "^4.10.0",
     "eslint-config-gemini-testing": "^2.2.0",
     "gemini": "^4.4.4",
     "husky": "^0.12.0",