Allow Puppet 5 FOSS installations

[tuxmea]

• config.yaml can specify puppet version 5,6 or 'latest'
• Vagrantfile uses puppet version config setting
• puppet install script now fetches apt and yum repo packages according to parameter
• setup puppetserver was missing installation of puppetserver package

[tuxmea]

Error messages from travis: 1.

gem install r10k

ERROR:  Error installing r10k:

    There are no versions of cri (>= 2.15.10, < 3.0.0) compatible with your Ruby & RubyGems. Maybe try installing an older version of the gem you're looking for?

    cri requires Ruby version ~> 2.3. The current ruby version is 2.1.0.

Successfully installed colored2-3.1.2

The command "gem install r10k" failed and exited with 1 during .

2. 1) jenkins.lab.psick.io on ubuntu-18.04-x86_64 is expected to contain Service[jenkins] with ensure => "running"
   
    Failure/Error: it { is_expected.to contain_service('jenkins').with('ensure' => 'running') }
   
      expected that the catalogue would contain Service[jenkins]
   
    # ./spec/hosts/jenkins.lab.psick.io_spec.rb:21:in `block (4 levels) in <top (required)>'
   
   2) jenkins.lab.psick.io on redhat-7-x86_64 is expected to contain Service[jenkins] with ensure => "running"
   
    Failure/Error: it { is_expected.to contain_service('jenkins').with('ensure' => 'running') }
   
      expected that the catalogue would contain Service[jenkins]
   
    # ./spec/hosts/jenkins.lab.psick.io_spec.rb:21:in `block (4 levels) in <top (required)>'