title: `react-native init AwesomeProject` throwing SyntaxError
body: <p><code>react-native init AwesomeProject</code> is throwing <code>SyntaxError: Unexpected token :</code> and I'm not sure why. I've uninstalled and re-installed react-native-cli. Tried with and without <code>yarn</code>. Any suggestions?</p>
  
  <pre><code>mes-MBP:myproject me$ react-native init AwesomeProject
  This will walk you through creating a new React Native project in /Users/me/WebstormProjects/myproject/AwesomeProject
  Using yarn v0.17.10
  Installing react-native...
  /Users/me/WebstormProjects/myproject/AwesomeProject/node_modules/react-native/local-cli/util/Config.js:43
    cwd: string,
       ^
  
  SyntaxError: Unexpected token :
      at exports.runInThisContext (vm.js:53:16)
      at Module._compile (module.js:387:25)
      at loader (/Users/me/WebstormProjects/myproject/AwesomeProject/node_modules/babel-register/lib/node.js:144:5)
      at Object.require.extensions.(anonymous function) [as .js] (/Users/me/WebstormProjects/myproject/AwesomeProject/node_modules/babel-register/lib/node.js:154:7)
      at Module.load (module.js:357:32)
      at Function.Module._load (module.js:314:12)
      at Module.require (module.js:367:17)
      at require (internal/module.js:20:19)
      at Object.&lt;anonymous&gt; (/Users/me/WebstormProjects/myproject/AwesomeProject/node_modules/react-native/local-cli/cliEntry.js:13:16)
      at Module._compile (module.js:413:34)
  </code></pre>