Unable to create an empty folder on loading

[lovery]

You can see that nodes lost+found, cdrom, dev, etc should be folders but they are tags.
I think, I can fix this and create a pull request.

[rychkog]

It would be great!

[x-falcon]

just add loadChildren:true, than ,it will be empty folder.

{

value:'empty folder',

loadChildren:true,

}

 public tree: any = {
    value: 'Programming languages by programming paradigm',
    children: [
      {
        value: 'Object-oriented programming',
        children: [
          {value: 'Java'},
          {value: 'C++'},
          {value: 'C#'},
        ]
      },
      {
        value: 'Prototype-based programming',
        children: [
          {value: 'JavaScript'},
          {value: 'CoffeeScript'},
          {value: 'Lua'},
        ]
      },
      {
        value:'empty folder',
        loadChildren:true,
      }
    ]
  };