Update ESLint dependencies

Author: fathyb

package.json

@@ -60,6 +60,7 @@
     "component-type": "^1.2.1",
     "component-url": "^0.2.1",
     "debug": "^0.7.4",
+    "eslint-plugin-react": "^7.9.1",
     "extend": "3.0.1",
     "inherits": "^2.0.1",
     "install": "^0.7.3",
@@ -72,16 +73,16 @@
   },
   "devDependencies": {
     "@segment/analytics.js-integration": "^3.2.1",
-    "@segment/eslint-config": "^3.1.1",
+    "@segment/eslint-config": "^4.0.0",
     "browserify": "13.0.0",
     "browserify-istanbul": "^2.0.0",
     "codecov": "^3.0.2",
     "compat-trigger-event": "^1.0.0",
     "component-each": "^0.2.6",
-    "eslint": "^2.9.0",
+    "eslint": "^4.19.1",
     "eslint-config-prettier": "^2.9.0",
-    "eslint-plugin-mocha": "^2.2.0",
-    "eslint-plugin-require-path-exists": "^1.1.5",
+    "eslint-plugin-mocha": "^5.0.0",
+    "eslint-plugin-require-path-exists": "^1.1.8",
     "husky": "^0.14.3",
     "istanbul": "^0.4.3",
     "jquery": "^3.2.1",