some features requests

[shinji2009]

hi.
thank you for your app it is amazing simple to work with.
i'd like to ask some features if it is possible and maybe more users will find it useful.

when accessing from the browser:

1. switch to make folders on the left to be a hierarchical directory structure.
2. switch to set order of media played. only one - next - random - loop this one. so you can turn on video, set to fullscreen and just relax.
3. also it will be very convenient if in hierarchical directory structure view if you set video play in random order and there is some other directories with videos in this root directory, they all will be also added to random shuffle.
4. add "next" and "previous" buttons to player on fullscreen

thank you