Add configurable match-info extension support

Change-Id: I642c7863f1249025c518ee3402536fb07b26e529
diff --git a/kalamar.conf b/kalamar.conf
index e0ff62c..d364d97 100644
--- a/kalamar.conf
+++ b/kalamar.conf
@@ -71,6 +71,7 @@
     #   items_per_page => 20,
     #   context => '20-t,20-t',
     #   alignment => 'left' # or 'right' or 'center'
+    #   match_info_extended => 'max',
     # },
 
     # proxies => [{