Prior to this commit, when using the purge option, unmanaged entries
in both /etc/apt/sources.list and sources.list.d would be purged.
This commit splits purge into purge_sources_list and purge_sources_list_d
which handle the purging of those items separately. Brief documentation on
each added to class documentation.
The setting `disable_keys => true` parameter in the apt module creates
/etc/apt/apt.conf.d/99unauth with the contents
"APT::Get::AllowUnauthenticated 1;". Changing `disable_keys`
does not remove this file. This patch makes it so that
`disable_keys => false` will remove /etc/apt/apt.conf.d/99unauth.
When the name is used with a file resource, it becomes difficult to test the
resource using rspec-puppet, as the name parameter gets aliased to path. So to
maintain consistency between tests and manifests, this replaces all name
parameters in file resources with the equivalent path parameter.
both of these params facilitate options that
ease the management of apt repos in dev
environments
1. disable_keys - allows repos without properly
signed keys
2. always_apt_update - refreshes via apt update
every time that puppet runs.
