Reflux.all does not properly keep a list of listeners

[spoike]

Bug since 0.1.8. Reflux.all has a tendency to loose all of the listeners it listens to and will kill the cyclic dependency check.

Testcase

    var action = Reflux.createAction();
    var action2 = Reflux.createAction();
    var action3 = Reflux.createAction();
    var store = Reflux.createStore({
        init: function() {
            this.listenTo(action, this.trigger);
        }
    });

    var join = Reflux.all(store, action2);

    var store = Reflux.createStore({
        init: function() {
            this.listenTo(join, this.trigger);
        }
    });

    Console = function() {
        this.listenTo(store, this.output);
        this.listenTo(action3, this.output); // CRASHES HERE
    }
    Console.prototype.output = function() {
        console.log(arguments);
    };
    _.extend(Console.prototype, Reflux.ListenerMixin);

    var c = new Console();

    action("Hello");
    action2("World");