Use destructor of document wrapper to cleanup temporary folder.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk/utils@40496 20353a03-c40f-0410-a6d1-a30d3c3de9de

cloudooo/document.py

@@ -133,3 +133,6 @@ class FileSystemDocument(object):
     if exists(self.directory_name):
       rmtree(self.directory_name)
       self.url = None
+
+  def __del__(self):
+    self.trash()