Update package dependecy for jsx-a11y

Author: bondz

package.json

@@ -16,7 +16,7 @@
     "eslint-config-react-app": "0.5.1",
     "eslint-plugin-flowtype": "2.21.0",
     "eslint-plugin-import": "2.0.1",
-    "eslint-plugin-jsx-a11y": "2.2.3",
+    "eslint-plugin-jsx-a11y": "4.0.0",
     "eslint-plugin-react": "6.4.1",
     "lerna": "^2.0.0-beta.37",
     "lerna-changelog": "^0.2.3"