Wire up `admin` view properly

app/assets/javascripts/admin/routes/admin_route.js

@@ -1,8 +1,4 @@
 Discourse.AdminRoute = Discourse.Route.extend({
-  renderTemplate: function() {
-    this.render('admin/templates/admin');
-  },
-
   titleToken: function() {
     return I18n.t('admin_title');
   },

app/assets/javascripts/admin/routes/admin_user_route.js

@@ -8,7 +8,7 @@ Discourse.AdminUserRoute = Discourse.Route.extend({
   },
 
   renderTemplate: function() {
-    this.render({into: 'admin/templates/admin'});
+    this.render({into: 'admin'});
   },
 
   afterModel: function(adminUser) {

app/assets/javascripts/admin/views/admin.js.es6

@@ -0,0 +1,6 @@
+export default Ember.View.extend({
+  _onInsert: function() {
+
+  }.on('didInsertElement')
+});
+

app/assets/javascripts/discourse/ember/resolver.js.es6

@@ -171,6 +171,11 @@ export default Ember.DefaultResolver.extend({
       const compTemplate = Ember.TEMPLATES['admin/templates/' + decamelized];
       if (compTemplate) { return compTemplate; }
     }
+
+    if (decamelized === "javascripts/admin") {
+      return Ember.TEMPLATES['admin/templates/admin'];
+    }
+
     if (decamelized.indexOf('admin') === 0 || decamelized.indexOf('javascripts/admin') === 0) {
       decamelized = decamelized.replace(/^admin\_/, 'admin/templates/');
       decamelized = decamelized.replace(/^admin\./, 'admin/templates/');