Refactor for less model duplication

js/models/conversations.js

@@ -163,6 +163,7 @@
     },
 
     fetchMessages: function() {
+        if(!this.id) { return false; }
         return this.messageCollection.fetchConversation(this.id);
     },
 
@@ -181,6 +182,11 @@
         }
     },
 
+    reload: function() {
+        this.fetch().then(this.fetchContacts.bind(this));
+        this.fetchMessages();
+    },
+
     archive: function() {
         this.set({active_at: null});
     },