Rename and delete discussion controls

ember/app/controllers/discussion.js

@@ -102,6 +102,19 @@ export default Ember.Controller.extend(Ember.Evented, UseComposerMixin, {
 
     postRemoved: function(post) {
       this.get('stream').removePost(post);
+    },
+
+    rename: function(title) {
+      var discussion = this.get('model');
+      discussion.set('title', title);
+      discussion.save();
+    },
+
+    delete: function() {
+      var controller = this;
+      this.get('model').destroyRecord().then(function() {
+        controller.transitionToRoute('index');
+      });
     }
   }
 });

ember/app/templates/discussion.hbs

@@ -1,6 +1,6 @@
 <header class="hero discussion-hero">
   <div class="container">
-    <h2>{{model.title}}</h2>
+    <h2 class="discussion-title">{{model.title}}</h2>
   </div>
 </header>
 

ember/app/views/discussion.js

@@ -66,5 +66,21 @@ export default Ember.View.extend(HasItemLists, {
       view.get('streamContent').send('goToLast');
       view.get('controller').send('reply');
     });
+
+    this.addSeparatorItem(items);
+
+    this.addActionItem(items, 'rename', 'Rename', 'pencil', 'discussion.canEdit', function() {
+      var discussion = view.get('controller.model');
+      var title = prompt('Enter a new title for this discussion:', discussion.get('title'));
+      if (title) {
+        view.get('controller').send('rename', title);
+      }
+    });
+
+    this.addActionItem(items, 'delete', 'Delete', 'times', 'discussion.canDelete', function() {
+      if (confirm('Are you sure you want to delete this discussion?')) {
+        view.get('controller').send('delete');
+      }
+    });
   }
 });