Security to block non existant folders and back_browsing (../../etc).
Some other user definable settings, see includes/config.inc.php.
Almost every single function is fully commented and dated
MINI-FAQ
Click on Folder icon to browse
Double Click on Folder/File name to rename
After renaming a file, you will still be able to preview but install in your editor, will not work
Move (hover) your mouse over any file Icon If it is an image you will see the thumb view of the image
Click on any file icon image to see more information about the file If it is an image you will see the option to create a thumb If the file is an image, flv or audio you will be able to preveiew it with JW-Player
Right click on a file icon to open the context menu (not working with Opera)
Right click on a Folder icon to paste file, or click on the paste icon
Opera users can click on a file icon and then click on copy to copy/paste a file Note that clicking on the copy link in the file information panel is experimental