Much streamlining around setup steps in playbooks, now only run setup once per play.

examples/playbooks/templates/foo.j2

@@ -1,4 +1,10 @@
 # This is a very simple Jinja2 template representing an imaginary configuration file
 # for an imaginary app.
 
+# this is an example of loading a fact from the setup module
+system={{ ansible_system }}
+
+# here is a variable that could be set in a playbook or inventory file
 http_port={{ http_port }}
+
+