layers variable leaks out to global scope

[rgdonohue]

Looks like layers isn't declared within the storymap.2.5.js script. Can be fixed by passing layers as a setting to the map:

$('#storymap').storymap({
        layers: layers,
        scenes: scenes,

And then accessing like so within storymap.2.5.js (line 292):

$.each(settings.layers, function (key, layer) {

    // layer = layer.layer;
    layer.layer.on('s');
    layer.layer.on('load', function () {
        $(".storymap-loader").fadeTo(1000, 0);
    })

});```