misc updates

  * Wait for salt-master and salt-minion to wake up after restart
  * fix aptly publisher config path
  * refactor cleanup
  * remove multiverse from ubuntu_base.
    It was never packed into offline - so, should be safe to remove.

Change-Id: Ic5bd8d8085af5db10d52063bff50be41031ef248
diff --git a/mirror-image/scripts/salt.sh b/mirror-image/scripts/salt.sh
index 9655ec0..ea3d147 100644
--- a/mirror-image/scripts/salt.sh
+++ b/mirror-image/scripts/salt.sh
@@ -1,10 +1,11 @@
 #!/bin/bash -xe
 
+# Wait for salt-master and salt-minion to wake up after restart
+# since we just perform 'reboot.sh'
+salt-call --timeout=120 test.ping
+
 SALT_OPTS="-l debug -t 10 --retcode-passthrough --no-color"
 
-echo "deb [arch=amd64] ${APT_MIRANTIS_SALT_REPO}" > /etc/apt/sources.list.d/mcp_salt.list
-apt-get update
-apt-get install salt-formula* -y
 salt-call saltutil.refresh_pillar
 salt-call saltutil.sync_all