downgrade mocha eslint

Author: Max Presman

package.json

@@ -42,7 +42,7 @@
     "eslint-config-airbnb": "9.0.1",
     "eslint-plugin-flowtype": "2.3.1",
     "eslint-plugin-import": "^1.9.2",
-    "eslint-plugin-mocha": "4.1.0",
+    "eslint-plugin-mocha": "3.0.0",
     "eslint-plugin-react": "5.2.2",
     "flow-bin": "^0.29.0",
     "gulp": "^3.9.1",