Use ensure_packages rather than forcing the installation of the dependency

[ColinHebert]

ensure_packages is the recommended way to install packages within modules. It avoids conflicts with other modules that might require the same packages.

This is an updated version of #18

[ice799]

What version of puppet includes ensure_packages? This module has to support many different versions of Puppet.

[ColinHebert]

ensure_packages is a feature of the puppet stdlib module.
https://github.com/puppetlabs/puppetlabs-stdlib#ensure_packages

ensure_packages has been added to the stdlib (3.2.0) in 2012: https://github.com/puppetlabs/puppetlabs-stdlib/blob/master/CHANGELOG.md#2012-09-18---chad-metcalf-chadwibidatacom---320

[ice799]

OK. Sounds like this module may need a dependency on some minimum version of stdlib, which includes ensure_packages.

[ColinHebert]

Fair point, I've bumped the stdlib version to a minimum of 3.2.0

[ice799]

Just tested this and looks good. I noticed that the stdlib docs mention that stdlib 3.x supports puppet 2.7 and higher (if I am reading it correctly) which should be fine: https://forge.puppet.com/puppetlabs/stdlib/3.2.1.

Going to merge this -- thanks @ColinHebert for your work on this!