Update website version 2.1.5
Update website version 2.1.5

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