 
     private let realm = try! Realm()
     private var realmNotificationToken: NotificationToken?
-    static let listAddedNotification = "ListAddedNotification"
     static let listDeletedNotification = "ListDeletedNotification"
-    static let todoAddedNotification = "TodoAddedNotification"
     static let todoDeletedNotification = "TodoDeletedNotification"
     static let userInfoListIDKey = "ListID"
     private let notificationCenter = NSNotificationCenter.defaultCenter()


import Foundation
import RealmSwift

class Store {



    //MARK: Add List

    func addList(name: String) -> SignalProducer<Void, NoError> {
        let list = List()
        list.name = name

        realm.write { [unowned self] in
            self.realm.add(list)
        }

        return SignalProducer(value: ())
    }

    //MARK: Append Todo To List

    func appendTodo(text: String, list: List) -> SignalProducer<Void, NoError> {
        let todo = Todo()
        todo.text = text

        realm.write {
            list.todos.append(todo)
        }

        return SignalProducer(value: ())
    }

    //MARK: Delete List
