Ability to import task lists and handler lists from a top level playbook file. It is possible

to use multiple import statements to implement 'class' like behavior, and also to share
a common list of handlers between multiple patterns.

examples/base.yml

@@ -0,0 +1,5 @@
+---
+- name: no selinux
+  action: command /usr/sbin/setenforce 0
+- name: no iptables
+  action: service name=iptables state=stopped