Alternative installation option

The following composer exception occurred when trying to install on CentOS using "composer create-project jmikola/mongoqp":

[Composer\Downloader\TransportException]                                     
  The "https://api.github.com/repos/symfony/Routing/zipball/v2.2.0-RC3" file   
  could not be downloaded (HTTP/1.0 404 Not Found)