Support installation from package

[kasimon]

At least for debian, there are gerrit packages available at http://deb.gerritforge.com/. So it would be nice if there was the possibility to alternatively let them module install gerrit via package. For example with settings like this:

$install_method: {download|package}
$manage_package_repository: {true|false} # if true, add gerritforge repository to the system

[tykeal]

Send a PR if you want the support. An earlier version of this module (internal only, really bad code) used to use custom internal packages. We always found the packages harder to actually work with in some ways which is part of the reason there's no package support at present. Besides, when I released this module originally there weren't any public deb or rpm packages ;)

[kasimon]

Ok, fair request, I will see wether I can come up with a working change request.