This prevents an outage should the keyserver be unaccesible (e.g. the
host doesn't allow outbound traffic or the keyserver is down)
The subkey has been removed from the original key since it is not
required and older versions of the apt module incorrectly parse the
subkey's fingerprint.
- use beaker/puppet_install_helper to install puppet
- installed dependency modules like they are listed in the metadata.json
- changed apt repo source from https to http, https produced ssl errors under certain ruby versions and needs additional packages on some systems and the packages are signed anyways
