Update circle configuration
Update circle configuration

sni/vagrant,bryson/vagrant,mitchellh/vagrant,sni/vagrant,sni/vagrant,mitchellh/vagrant,mitchellh/vagrant,sni/vagrant,chrisroberts/vagrant,gitebra/vagrant,mitchellh/vagrant,gitebra/vagrant,marxarelli/vagrant,chrisroberts/vagrant,bryson/vagrant,chrisroberts/vagrant,bryson/vagrant,gitebra/vagrant,bryson/vagrant,marxarelli/vagrant,chrisroberts/vagrant,marxarelli/vagrant,marxarelli/vagrant,gitebra/vagrant