Puppet Forge release 2.0.0

  Marks the commit that the branch stable/grizzly and the 2.0.0 tag is
  cut from.  Also adds the pkg directory to .gitignore to prevent
  accidental committing of Forge artifacts to the repository.

Change-Id: I5fc8f49a227db2a357c8748a24b44f2c9c58e89d