I can delete the "root" account
http://forge.taotesting.com/issues/3130
A better way to detect if user is "default"
Merge branch 'develop' into forge3130

Conflicts:
	actions/class.Users.php
	views/js/ui/usermgr.js
	views/js/ui/usermgr/tpl/layout.tpl
Merge branch 'forge3130' into develop
Merge branch 'develop' of git://github.com/oat-sa/tao-core into develop