Deleted todos form the new item dialog route

lib/src/widgets/custom_app_bar.dart

@@ -1,7 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 
+//TODO: add support for tabed navigation.
+
+/// A custom app bar to match the DO> design rules.
+///
+/// This app bar is meant to be usen in screens that are not the home screen.
+/// It will always contain a back button that pops the current screen.
 class CustomAppBar extends StatelessWidget implements PreferredSizeWidget {
+  /// The title for the app bar.
   final String title;
 
   CustomAppBar({this.title = ''});

lib/src/widgets/new_item_dialog_route.dart

@@ -7,15 +7,12 @@ import './new_item_dialog_button.dart';
 /// add a new picture.
 class NewItemDialogRoute extends PopupRoute {
   @override
-  // TODO: implement barrierColor
   Color get barrierColor => Color.fromRGBO(255, 255, 255, 0.5);
 
   @override
-  // TODO: implement barrierDismissible
   bool get barrierDismissible => true;
 
   @override
-  // TODO: implement barrierLabel
   String get barrierLabel => null;
 
   @override
@@ -52,6 +49,5 @@ class NewItemDialogRoute extends PopupRoute {
   }
 
   @override
-  // TODO: implement transitionDuration
   Duration get transitionDuration => Duration(milliseconds: 300);
 }