Fix: parametrize apt::ppa class for beign able to pass options to apt-add-repository command

[oleiade]

Hi!

Using the puppetlabs-apt module on our platform we've noticed that even if we manualy added repositories keys before adding a launchpad repo using apt::ppa class, the operation would fail because apt-add-repository would ask for user input.

We've fixed the apt::ppa class to support a options parameter allowing to pass options to the underlying apt-add-repository execution. As a default 'options' is set to '-y' to avoid user prompt. We found it might be usefull to anyone so here's our pull request.

Thanks

[apenney]

Hi,

First I want to say thanks for the PR! However, before we could look at accepting it I'd need to ask you to look at the specs because they have all broken. :) It's as simple as adding in the -y to the expected commands (if you look at the travis output in this PR you can see what's failing currently).

[oleiade]

Sorry for that, I'm not used to rspec and didn't thought about. I fixed it by adding the options passing to apt::ppa tests. Travis says it's okay now :)

[apenney]

Awesome, thanks for this contribution!