Don't hardcode react-scripts package name (#728)

* Don't hardcode react-scripts package name

Fixes issue described in https://github.com/facebookincubator/create-react-app/issues/682#issuecomment-248781486.

* Update eject.js

packages/react-scripts/scripts/eject.js

@@ -77,8 +77,9 @@ prompt(
   var ownPackage = require(path.join(ownPath, 'package.json'));
   var appPackage = require(path.join(appPath, 'package.json'));
 
-  console.log('Removing dependency: react-scripts');
-  delete appPackage.devDependencies['react-scripts'];
+  var ownPackageName = ownPackage.name;
+  console.log('Removing dependency: ' + ownPackageName);
+  delete appPackage.devDependencies[ownPackageName];
 
   Object.keys(ownPackage.dependencies).forEach(function (key) {
     // For some reason optionalDependencies end up in dependencies after install
@@ -93,7 +94,10 @@ prompt(
   delete appPackage.scripts['eject'];
   Object.keys(appPackage.scripts).forEach(function (key) {
     appPackage.scripts[key] = appPackage.scripts[key]
-      .replace(/react-scripts (\w+)/g, 'node scripts/$1.js');
+      .replace(
+        new RegExp(ownPackageName + ' (\w+)', 'g'),
+        'node scripts/$1.js'
+      );
   });
 
   // Add Jest config

packages/react-scripts/scripts/init.js

@@ -14,8 +14,8 @@ var pathExists = require('path-exists');
 var chalk = require('chalk');
 
 module.exports = function(appPath, appName, verbose, originalDirectory) {
-  var ownPath = path.join(appPath, 'node_modules', 'react-scripts');
-
+  var ownPackageName = require(path.join(__dirname, '..', 'package.json')).name;
+  var ownPath = path.join(appPath, 'node_modules', ownPackageName);
   var appPackage = require(path.join(appPath, 'package.json'));
 
   // Copy over some of the devDependencies
@@ -24,10 +24,10 @@ module.exports = function(appPath, appName, verbose, originalDirectory) {
 
   // Setup the script rules
   appPackage.scripts = {
-    'start': 'react-scripts start',
-    'build': 'react-scripts build',
-    'test': 'react-scripts test --env=jsdom',
-    'eject': 'react-scripts eject'
+    'start': ownPackageName + ' start',
+    'build': ownPackageName + ' build',
+    'test': ownPackageName + ' test --env=jsdom',
+    'eject': ownPackageName + ' eject'
   };
 
   fs.writeFileSync(