Initial test setup
Updated documentation on what we are heading for
select_user function: combines array of users with different hashes
Helper definition for user/ssh key management
reinitialize the variables when using puppet 3, select the users and create them
Add purge support. People leave at some point.
added hash_keys function which returns an array with the hash keys as values...
Added array_substract function (i wonder what it does...) and finish the main module