Making use of the apt-check command from the 'update-notifier-common'
package (if available) display the number of available updates, number of
security updates as well as the update package names.
For some reason, even though our own tests pass with `require
puppet_x/apt_key/patch_openuri` every other module that depends on
puppetlabs-apt is now breaking in tests claiming it can't load that
module.
Somewhere along the way something is probably messing with LOADPATH
causing this to trip up. This should fix the issues for everyone.
This commit affects:
* puppetlabs/puppetlabs-apt#229
* puppetlabs/puppetlabs-postgresql#391
This commits introduces:
* The apt_key type;
* The apt_key provider;
* Unit tests for the type;
* Beaker/acceptance tests for the type/provider.
The idea behind apt_key is that apt::key will simply become a wrapper
that uses apt_key. Being a native type/provider apt_key is a lot less
error prone than the current exec behaviour of apt::key and adds a few
nice bonuses like inventory capabilities for mcollective users.
