Support private repos
Support private repos

redhat-developer-tooling/vagrant-installers,mitchellh/vagrant-installers,mitchellh/vagrant-installers,chrisroberts/vagrant-installers,redhat-developer-tooling/vagrant-installers,mitchellh/vagrant-installers,chrisroberts/vagrant-installers,chrisroberts/vagrant-installers,chrisroberts/vagrant-installers,chrisroberts/vagrant-installers,mitchellh/vagrant-installers,mitchellh/vagrant-installers,redhat-developer-tooling/vagrant-installers,redhat-developer-tooling/vagrant-installers,chrisroberts/vagrant-installers,mitchellh/vagrant-installers