Salt: Update Master and Minions

1. Update all the repositories:
   salt ‘*’ cmd.run “aptitude update”
2. Update the Master:
   apt-get upgrade salt-master
3. Get the existing Minion versions:
   salt '*' test.version
   salt-run manage.versions
4. Update the Minions:
   alt '*' pkg.install salt-minion refresh=True
5. Check the versions:
   salt '*' test.version