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.

README.md

@@ -41,6 +41,7 @@ Requirements are extremely minimal.
 If you are running python 2.6 on the 'overlord' machine, you will need:
 
    * paramiko
+   * python-jinja2
    * PyYAML (if using playbooks)
 
 If you are running less than Python 2.6, you will also need
@@ -161,6 +162,9 @@ An example showing a small playbook:
 
     ---
     - hosts: all
+      vars:
+        http_port: 80
+        max_clients: 200
       user: root
       tasks:
       - include: base.yml