Add /badges route that lists all defined badges.

app/assets/javascripts/discourse/models/badge.js

@@ -164,7 +164,7 @@ Discourse.Badge.reopenClass({
     @returns {Promise} a promise that resolves to an array of `Discourse.Badge`
   **/
   findAll: function() {
-    return Discourse.ajax('/admin/badges').then(function(badgesJson) {
+    return Discourse.ajax('/badges.json').then(function(badgesJson) {
       return Discourse.Badge.createFromJson(badgesJson);
     });
   }

app/assets/javascripts/discourse/routes/application_routes.js

@@ -94,4 +94,6 @@ Discourse.Route.buildRoutes(function() {
 
   this.route('signup', {path: '/signup'});
   this.route('login', {path: '/login'});
+
+  this.route('badges');
 });

app/assets/javascripts/discourse/routes/badges_route.js

@@ -0,0 +1,13 @@
+/**
+  Shows a list of all badges.
+
+  @class BadgesRoute
+  @extends Discourse.Route
+  @namespace Discourse
+  @module Discourse
+**/
+Discourse.BadgesRoute = Discourse.Route.extend({
+  model: function() {
+    return Discourse.Badge.findAll();
+  }
+});

app/assets/javascripts/discourse/templates/badges.js.handlebars

@@ -0,0 +1,13 @@
+<div class='container'>
+  <h1>{{i18n badges.title}}</h1>
+
+  <table class='badges-listing'>
+    {{#each}}
+      <tr>
+        <td class='badge'>{{user-badge badge=this}}</td>
+        <td class='description'>{{description}}</td>
+        <td class='grant-count'>{{i18n badges.awarded count=grant_count}}</td>
+      </tr>
+    {{/each}}
+  </table>
+</div>