Config file for installing composer

composer.json

{
  "require": {
    "behat/behat": "2.4.*@stable",
    "behat/mink": "dev-develop",
    "behat/mink-selenium2-driver": "*",
    "behat/mink-goutte-driver": "*",
    "behat/mink-extension": "*",
   "drupal/drupal-extension": "*"
  },
  "minimum-stability": "dev",  
  "config": {
    "bin-dir": "bin/"
  }
}