(MODULES-1467) refactor params.pp for for puppetlabs approved
(MODULES-1467) refactor params.pp for for puppetlabs approved

Your pattern in `params.pp`
(https://github.com/mkrakowitzer/puppet-stash/blob/master/manifests/params.pp#L6)
is a little unusual, it might be better to update it to be something
like `case "${::osfamily}"` and then have another case (or if/else)
under `RedHat`.

kinneygroup/puppet-stash,voxpupuli/puppet-stash,darkstar42/puppet-stash,darkstar42/puppet-stash,darkstar42/puppet-stash,kinneygroup/puppet-stash,adamcrews/puppet-stash,kinneygroup/puppet-stash,mkrakowitzer/puppet-stash,puppet-community/puppet-stash,puppet-community/puppet-stash,johnlawerance/puppet-stash,johnlawerance/puppet-stash,danofthewired/puppet-bitbucket,adamcrews/puppet-stash,voxpupuli/puppet-stash,puppet-community/puppet-stash,adamcrews/puppet-stash,johnlawerance/puppet-stash,voxpupuli/puppet-stash,mkrakowitzer/puppet-stash,mkrakowitzer/puppet-stash,danofthewired/puppet-bitbucket,danofthewired/puppet-bitbucket