Update to use version 3 of hiera.yaml, correct typos in yaml files

Hi, this PR updates the use of data in modules to use the simplified format (version 3). This version is currently found in this branch: https://github.com/hlindberg/puppet/tree/feature/arm9-puppet-3_4

And documented here: https://github.com/hlindberg/misc-puppet-docs/blob/master/data-in-modules.md

The changes to hiera.yaml makes it only work with the newer branch. The other changes apply to the original 3.3.0 version of data in modules as well (general yaml issues).