Support .eslintrc in project root. .eslintrc should minimally contain:

{
  "extends": "react-app"
}

Fixes #1.

Author: tmcf

packages/react-scripts/config/webpack.config.dev.js

@@ -117,8 +117,8 @@ module.exports = {
           // @remove-on-eject-begin
           // Point ESLint to our predefined config.
           options: {
-            configFile: path.join(__dirname, '../.eslintrc'),
-            useEslintrc: false
+            //configFile: path.join(__dirname, '../.eslintrc'),
+            useEslintrc: true
           },
           // @remove-on-eject-end
           loader: 'eslint-loader'

packages/react-scripts/config/webpack.config.prod.js

@@ -124,8 +124,8 @@ module.exports = {
           options: {
             // TODO: consider separate config for production,
             // e.g. to enable no-console and no-debugger only in production.
-            configFile: path.join(__dirname, '../.eslintrc'),
-            useEslintrc: false
+            //configFile: path.join(__dirname, '../.eslintrc'),
+            useEslintrc: true
           },
           // @remove-on-eject-end
           loader: 'eslint-loader'