Fix: regression. quote was no more supported.

htdocs/core/lib/files.lib.php

@@ -496,7 +496,7 @@ function dol_unescapefile($filename)
 	// Remove path information and dots around the filename, to prevent uploading
 	// into different directories or replacing hidden system files.
 	// Also remove control characters and spaces (\x00..\x20) around the filename:
-	return trim(basename(stripslashes($filename)), ".\x00..\x20");
+	return trim(basename($filename), ".\x00..\x20");
 }
 
 /**
@@ -765,7 +765,7 @@ function dol_delete_preview($object)
 {
 	global $langs,$conf;
     require_once(DOL_DOCUMENT_ROOT."/core/lib/files.lib.php");
-    
+
     $element = $object->element;
     $dir = $conf->$element->dir_output;