* Document the optionality in the defaults
* validate the input in the tasks before it's templated
* Standardize on the exec(starts,stops,reloads} interface
* Update the readme
* Add functional test
Change-Id: Icae36f970178b1cc79d069a94321afb1732a8c5c
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>