Update CHANGELOG
Update CHANGELOG

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