Added vhost_alias.sls for that apache mod

apache/vhost_alias.sls

@@ -0,0 +1,16 @@
+{% if grains['os_family']=="Debian" %}
+
+include:
+  - apt
+  - apache
+
+a2enmod vhost_alias:
+  cmd.run:
+    - unless: ls /etc/apache2/mods-enabled/vhost_alias.load
+    - order: 225
+    - require:
+      - pkg: apache
+    - watch_in:
+      - cmd: apache-restart
+
+{% endif %}