Purge /etc/sensu/conf.d/{checks,handlers} as well

Currently unmanaged files in these directories won't get purged, even
if $purge_config is set to true. This commit ensures that they do.

Author: philandstuff

manifests/server.pp

@@ -35,6 +35,8 @@
     mode    => '0555',
     owner   => 'sensu',
     group   => 'sensu',
+    purge   => $purge_config,
+    recurse => true,
     require => Package['sensu'],
   }