Add basic accounts via the `account` module and hieradata

The keys have been pulled from the existing `infra-puppet` repository, but are
not yet being pulled into a module to `create_resources` and actually add these
accounts to the catalog
Add the puppetlabs_spec_helper to make running our rspec-puppet tests easier
Avoid linting and validating Puppet manifests that are not owned by 'jenkins-infra'
Properly generate `account` resources from our hiera data

Now with 100% more tests!

This commit introduces the ability to run rspec-puppet tests for the role and
profile classes that are being added into dist/. All other module tests hsould
be done in the repositories for those modules

[FIXED INFRA-8]
Include the account profile in our puppetmaster role
Merge pull request #4 from rtyler/accounts-setup

Accounts setup