Cannot fetch installer puppet-enterprise-2016.2.1-el-7-x86_64.tar.gz; no download source available.

[mikev1963]

Installers available for use:

• puppet-enterprise-2016.1.2-el-7-x86_64.tar.gz
  The Puppet Enterprise installer puppet-enterprise-2016.2.1-el-7-x86_64.tar.gz
  is not available. Please set the download_root config option to a valid
  mirror, or add the installer yourself by using the vagrant pe-build copy
  command. Downloads for Puppet Enterprise are available for download at
  https://puppetlabs.com/puppet/puppet-enterprise/

[terrimonster]

put this in your pe_build.yaml:

---

pe_build:
version: 2016.2.1
download_root: "https://s3.amazonaws.com/pe-builds/released/:version"

[thirumoorthir]

Fixed this on #56