Basic installation

Install a package from the upstream APT repo. This doesn't warrant our usual
pattern of `::install`, `::config`, etc. because it's pretty simple and
doesn't have a service to notify.
Manage aptly.conf

By passing a hash of configuration items. Using `#to_pson` instead of
`#to_json` because it's guaranteed to be loaded by Puppet and does the same
thing - our tests will catch if it doesn't. Using `inline_template()`
because the file is some simple it doesn't warrant and ERB file.
Allow the upstream repo to be disabled

Once you've setup aptly you may want to mirror `repo.aptly.info` yourself.
In which case you won't want this `apt::source` resource.
Flesh out meta (README, Modulefile, etc)
Merge pull request #1 from alphagov/create_aptly_from_skeleton

Create aptly module from skeleton