- Fixes issue 33: pull_all_users shouldn't return email addresses except for admin
- Also modifies function 'is_admin' from _userutils.php
so that it can be called without parameters
	modified:   _userutils.php
	modified:   pull_all_users.php
Merge pull request #12 from xnoumbis/master

- Fixes issue 33: pull_all_users shouldn't return email addresses except...