add content to new repo.

I am adapting the puppet-sshauth module https://github.com/vurbia/puppet-sshauth
which is an adaptation of ssh:auth http://projects.puppetlabs.com/projects/puppet/wiki/Module_Ssh_Auth_Patterns.

I did a lot of reworking of puppet-sshauth.  I was having strange issues when
overriding parameters in the collection classes, especially in sshauth::client.
I found I could not rely on the collection syntax to override more than a
single param.  So instead I use a series of if clauses to parse all possible
permutations of potential params.  Not as elegant, but reliable.