Don't depend on Puppet gem. Fixes #38
Support Puppet Enterprise Versions

Unfortunately the PE version string for PE includes the version of PE: `2.7.19 (Puppet Enterprise 2.6.1)`. This change tests against the first of these version strings.
Fixes rodjek/librarian-puppet#38 rodjek/librarian-puppet#62 rodjek/librarian-puppet#47

* tag 'master+pull.47.0':
  Don't depend on Puppet gem. Fixes #38
Fixes rodjek/librarian-puppet#58

* metcalfc/patch-1:
  Support Puppet Enterprise Versions

Conflicts:
	lib/librarian/puppet/source/forge.rb