rename base example role, and comment run_list and attributes by default

Author: jtimberman

roles/base.rb renamed to roles/base_example.rb

@@ -1,10 +1,10 @@
-name "base"
+name "base_example"
 description "Base role applied to all nodes."
-# List of recipes and roles to apply.
-run_list()
+# List of recipes and roles to apply. Requires Chef 0.8, earlier versions use 'recipes()'.
+#run_list()
 
 # Attributes applied if the node doesn't have it set already.
-default_attributes()
+#default_attributes()
 
 # Attributes applied no matter what the node has set already.
-override_attributes()
+#override_attributes()