Play and pause music by clicking the button.
Added GUI class to handle pushbuttons.
Display track title when playing music.
Convenience func for setting the clip rectangle
Function to list all files in a directory.
Load all music files in a directory.

Also added support for previous and next track buttons.
Added jukebox screenshots.
Word wrap long file names.
Screenshot showing off the pathfinder.
Updated with jukebox app details.
More random map details in the readme.
Added video link for hierarchical pathfinding.