constrict eslint-plugin-react version

jsx-eslint/eslint-plugin-react#1789

Author: shockey

package.json

@@ -115,7 +115,7 @@
     "eslint": "^4.1.1",
     "eslint-plugin-import": "^2.6.0",
     "eslint-plugin-mocha": "^4.11.0",
-    "eslint-plugin-react": "^7.1.0",
+    "eslint-plugin-react": "~7.7.0",
     "extract-text-webpack-plugin": "^2.1.2",
     "file-loader": "0.11.2",
     "git-describe": "^4.0.1",