Devstack support for Quantum DHCP

Fixes bug 1019462.

A new screen q-dhcp is created for the agent output.

Change-Id: Ie7f21a5f76ea7988ce817568edac7222cf7063d1
diff --git a/AUTHORS b/AUTHORS
index 80d8942..6141d67 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -14,6 +14,7 @@
 Eoghan Glynn <eglynn@redhat.com>
 Eric Windisch <ewindisch@cloudscaling.com>
 Gabriel Hurley <gabriel@strikeawe.com>
+Gary Kotton <gkotton@redhat.com>
 Hengqing Hu <hudayou@hotmail.com>
 Hua ZHANG <zhuadl@cn.ibm.com>
 Jake Dahn <admin@jakedahn.com>