Manage salt-minion package, service and config

Restart the service after upgrading the package or modifying the minion
configuration file.

Signed-off-by: Joe Groocock <me@frebib.net>

states/salt/minion/init.sls

@@ -30,7 +30,7 @@ salt-minion:
 
 check-minion-config:
   cmd.run:
-  - name: sudo salt-call --local --skip-grains test.ping
+  - name: sudo salt-call --local --skip-grains test.ping:
   - watch:
     - file: /etc/salt/minion