File tree mod

A modified File Tree module, with a lot of new features:

thumbnail generation
galleries
shadowbox/colorbox/fancybox
sorting options (localized, natural, random)
reverse sorting
WIP ui for settings
WIP wysywig integration

the new keywords:
'expand' => FALSE,
'sort' => NULL, /* natural,random*/
'reverse' => NULL, /* dir, file, both, thumb, all*/
'locale' => NULL,
'target' => NULL, /* links target '_self, _blank, _top, etc... */
'thumbnails' => FALSE,
'thumbsize' => '80x80',
'thumbnum' => NULL,
'collect' => NULL, /* first, folders, files */
'xbox' => FALSE, /* xxxbox support, now fancybox, shadowbox, colorbox */
'boxsize' => NULL, /* xxxbox width x height for shadowbox, colorbox */

The thumbnails generated in a new '!thumbs' directory in every directory.