deploy.py patch to run apt-get update during preconfig

[rpete]

--- deploy.py.old   2013-04-10 14:57:47.189697953 -0400
+++ deploy.py   2013-04-10 09:12:00.093290175 -0400
@@ -220,6 +220,7 @@
         instance_dir = self.deployer.instance.instance_dir        

         if self.basic:
+            ssh.run("sudo apt-get update")
             # Make backup copies of hostname and /etc/hosts
             if node.state in (Node.STATE_CONFIGURING, Node.STATE_RESUMED_RECONFIGURING):
                 ssh.run("sudo cp /etc/hosts /etc/hosts.gp-bak", expectnooutput=True)