Great module - need to remove a rogue underscore to allow admins to see all

Issue Summary

Hey there,

This module is doing exactly what we need it to do, thanks!

There is a slight error in the user_access() in private_nodes_check_access(), where the role is set to administer_users. Instead it should be 'administer users' (no underscore):

$is_admin = user_access('administer users');

Sorry about no patch, I just got set up on new computer still need stuff set up to do the diffs.

Thanks again!
Chris