Only include users.sudo when a user with sudouser is declared.
Merge pull request #42 from TimJones/master

Only include users.sudo when a user with sudouser is declared.
modified visudo to only report change in salt when there is an error.
added option to remove ssh public keys from auth (ssh_auth.absent)
Merge pull request #43 from 7oku/master

modified visudo to only report change in salt when there is an error. also add option to remove keys from ssh_auth
added option to specify user home directory mode
Merge pull request #44 from tiger-seo/master

special case for root user
Fix perms for ssh auth key file.
Fix merge conflicts.