Replace pkgrepo with offical Saltstack repo

issue #180

salt/pkgrepo/redhat/init.sls

@@ -1,10 +1,9 @@
 {% from "salt/map.jinja" import salt_settings with context %}
 
-saltstack-zeromq4:
+saltstack-pkgrepo:
   pkgrepo.managed:
-    - humanname: Copr repo for zeromq4 owned by saltstack
-    - baseurl: http://copr-be.cloud.fedoraproject.org/results/saltstack/zeromq4/{{ salt_settings.repotype }}-$releasever-$basearch/
-    - gpgcheck: 1
-    - gpgkey: https://copr-be.cloud.fedoraproject.org/results/saltstack/zeromq4/pubkey.gpg
-    - skip_if_unavailable: True
+    - humanname: SaltStack repo for RHEL/CentOS $releasever
+    - baseurl: https://repo.saltstack.com/yum/redhat/$releasever/$basearch/latest
     - enabled: 1
+    - gpgcheck: 1
+    - gpgkey: https://repo.saltstack.com/yum/redhat/$releasever/$basearch/latest/SALTSTACK-GPG-KEY.pub