Forward 'pipes' instead of 'pipe'

Change-Id: I644251327e66052fe1753fe2584395fc1ddb2d1e
diff --git a/lib/Kalamar/Controller/Search.pm b/lib/Kalamar/Controller/Search.pm
index 6f4d431..b602bec 100644
--- a/lib/Kalamar/Controller/Search.pm
+++ b/lib/Kalamar/Controller/Search.pm
@@ -111,7 +111,9 @@
 
   # Forward pipe
   if ($v->param('pipe')) {
-    $query{pipe} = $v->param('pipe');
+
+    # Temporary, as this is not agreed among the services yet
+    $query{pipes} = $v->param('pipe');
   };
 
   $c->stash(items_per_page => $items_per_page);