chore(package): update eslint-plugin-react to version 7.3.0

Closes #154

Author: greenkeeper[bot]

package.json

@@ -82,7 +82,7 @@
     "eslint-plugin-babel": "^4.0.0",
     "eslint-plugin-flowtype": "^2.17.1",
     "eslint-plugin-jsx-a11y": "^4.0.0",
-    "eslint-plugin-react": "^6.7.1",
+    "eslint-plugin-react": "^7.3.0",
     "eslint-watch": "^3.0.0",
     "extract-text-webpack-plugin": "^1.0.1",
     "fake-style-loader": "^1.0.1",