Factoids and push variables via setup are now available to be templated in command args

as well as template files.  PLUS, variables are now expressed in playbooks without having
to know about the setup task, which means playbooks are simpler to read now.

examples/playbook.yml

@@ -1,15 +1,18 @@
 ---
 - hosts: all
   user: root
+  vars:
+    http_port: 80
+    max_clients: 200
   tasks:
   - include: base.yml
-  - name: configure template & module variables for future template calls
-    action: setup http_port=80 max_clients=200
-  - name: write the apache config file
+  - name: write the apache config file using vars set above
     action: template src=/srv/httpd.j2 dest=/etc/httpd.conf
     notify:
     - restart apache
   - name: ensure apache is running
     action: service name=httpd state=started
+  - name: pointless test action
+    action: command /bin/echo {{ http_port }}
   handlers:
     - include: handlers.yml