* Slight refactor of osg::cacerts::updater class
** Add ensure parameter that sets defaults for the package and service ensure values
** Remove 'service_autorestart' parameter
** The default behavior should still be the same with the exception of the removal of the service_autorestart parameter
* Cleanup the class chaining in osg::client and osg::wn
* Add private_interface parameter to osg::squid and set defaults for both interface parameters to undef
* Add osg::cacerts::updater to acceptance tests (untested)