Version 1.1:
- The file with the list will ony be unlocked, if it was locked by ourselves
- If the path to lock file is missing, it will be created by adding ".lock" to the path of the list file
- The return value of print() in save() is now checked
- Comments translated into English
- Special chars will be encoded to HTML entities in directory listing and in other messages (very dirty at several points)
- Improved check for binary files (empty files were recognized as binary files)
- Check if someone tries to delete a directory