Release of 6.1.0

* Wed Oct 07 2020 Liz Nemsick <lnemsick.simp@gmail.com> - 6.1.0
  - Updated SIMP internet repositories configured by 'simp config'
    - Now uses simp-project.com repositories via new
      ``simp::yum::repo::internet_simp`` class
    - The packagecloud repositories are no longer being updated.
  - Added instructions to the local user lockout warning message in the
    bootstrap lock file:
    - Explain how to create a metadata.json file with the correct module
      dependencies for the sample Puppet code.
    - Tell the user to check that they can ssh into the server with the new
      user after bootstrap but before rebooting. This step is imperative to
      ensure that the user can also get through Puppet-managed
      authentication!
  - Fixed the following:
    - Bug in which `simp config` did not allow DNS domains that did
      not include at least one '.'.  Domains are now validated
      per RFC 3696.
    - Typo in a simp cli message about applying FACLs.
    - Incorrect path for the location of the SIMP server hieradata file
      in the local user lockout warning message in the bootstrap lock file.
    - Missing instructions in the local user lockout warning message about
      adding `passwd => false` to `simp::user_specification` for users who
      log in without a password.