Always setup rootwrap sudoers entry

Setup /etc/sudoers.d/nova-rootwrap in all cases, and not just
when devstack is not run as root. Fixes bug 1011652.

Change-Id: Ib4cdeaa282f01cf2ce98119618f232c91b6e8db4
diff --git a/AUTHORS b/AUTHORS
index f9aa9ea..ff05f82 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -26,6 +26,7 @@
 Kiall Mac Innes <kiall@managedit.ie>
 Russell Bryant <rbryant@redhat.com>
 Scott Moser <smoser@ubuntu.com>
+Thierry Carrez <thierry@openstack.org>
 Todd Willey <xtoddx@gmail.com>
 Tres Henry <tres@treshenry.net>
 Vishvananda Ishaya <vishvananda@gmail.com>