view fragment order is explictly controllable via optional parameter

order

this is neccessary because the order in the config is relevant for the
evaluation by bind

manifests/view.pp

@@ -7,11 +7,12 @@ define bind::view (
     $recursion                    = true,
     $recursion_match_clients      = 'any',
     $recursion_match_destinations = '',
+    $order                        = '10',
 ) {
     $confdir = $::bind::confdir
 
     concat::fragment { "bind-view-${name}":
-        order   => '10',
+        order   => $order,
         target  => "${::bind::confdir}/views.conf",
         content => template('bind/view.erb'),
     }