adapt form's submit button text

assets/js/apps/contacts/edit/edit_view.js

@@ -9,6 +9,8 @@ ContactManager.module("ContactsApp.Edit", function(Edit, ContactManager, Backbon
         var $title = $('<h1>', { text: this.title });
         this.$el.prepend($title);
       }
+
+      this.$(".js-submit").text("Update contact");
     }
   });
 });

assets/js/apps/contacts/new/new_view.js

@@ -1,5 +1,9 @@
 ContactManager.module("ContactsApp.New", function(New, ContactManager, Backbone, Marionette, $, _){
   New.Contact = ContactManager.ContactsApp.Common.Views.Form.extend({
-    title: "New Contact"
+    title: "New Contact",
+
+    onRender: function(){
+      this.$(".js-submit").text("Create contact");
+    }
   });
 });