Refactor,update images

  * Switch ubuntu|salt-stack to fetch from mirror.mirantis.com/proposed
  * ubuntu-16-04 - add openstack builder[inactive stub]
  * add info.sh - and enable it in mirror and ubuntu16
  * Drop mcp salt repos - we don't use them for build
  * switch to release-20180306 ubuntu cloud image

Change-Id: Ic45db3fd2579262b055ecdc54b27a16a837c2dd4
diff --git a/ubuntu-16.04/config-drive/user-data.yaml b/ubuntu-16.04/config-drive/user-data.yaml
index 32a896e..110d9ad 100644
--- a/ubuntu-16.04/config-drive/user-data.yaml
+++ b/ubuntu-16.04/config-drive/user-data.yaml
@@ -11,3 +11,8 @@
 runcmd:
   - sed -i'.orig' -e's/PermitRootLogin.*/PermitRootLogin yes/g' -e's/PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config
   - service sshd restart
+# speed up resolving, and not stuck on timeouts. One-shot changes
+  - echo '127.0.0.1 ubuntu' >> /etc/hosts
+  - echo 'options timeout:1 attempts:4' >> /etc/resolv.conf
+  - echo 'nameserver 172.18.208.44' >> /etc/resolvconf/resolv.conf.d/base
+  - resolvconf -u