Upcoming release
In the next release, permissions problems will be fixed. The app checks for the right permissions before trying to enter a folder/open a playlist.
The play module has been deleted. In it's place for each entry in players.xml is a file (example play_mp3.php) that plays the files with the extension specified in players.xml.
Also some variable names in cap.php have been changed. They still contained "definitions" and have now been changed to "informations".