With the new version, I was able to install the plugin and get it working with music tags, as it says in the instructions.
But speaking of the instructions, something is missing. It doesn't say how to begin using the plugin to play/create a DJ mix playlist. It was only by accident that I noticed you could right-click on a track in the library and use the plugin's option to "LikeaDJ - Start". Perhaps the README material could be rewritten to be easier to follow.
Anyway, fantastic idea for a plugin and I look forward to using it.