show all top-level comments (for now)

There is a bug, when you hide N top-level comments, that shows the wrong
comment count. With a JSON API like data structure, the total comment
count can be sent as a different key, related to #96.

isso/js/app/config.js

@@ -5,7 +5,7 @@ define(function() {
         "css": true,
         "lang": (navigator.language || navigator.userLanguage).split("-")[0],
         "reply-to-self": false,
-        "max-comments-top": 10,
+        "max-comments-top": "inf",
         "max-comments-nested": 5,
         "reveal-on-click": 5,
         "avatar": true,