use ubuntu 14.04 LTS

Author: evandbrown

dm/deployment.yaml

@@ -44,7 +44,7 @@ resources:
     image:
       mode: default
       default:
-        image: https://www.googleapis.com/compute/v1/projects/ubuntu-os-cloud/global/images/ubuntu-1410-utopic-v20150202
+        image: https://www.googleapis.com/compute/v1/projects/ubuntu-os-cloud/global/images/ubuntu-1404-trusty-v20150909a
         chef_node_url: https://storage.googleapis.com/solutions-public-assets/scalable-resilient-web-apps/dist/node.json
         chef_cookbook_url: https://storage.googleapis.com/solutions-public-assets/scalable-resilient-web-apps/dist/chef-solo.tar.gz
       fast: