(Contributed by Georg Brandl and Mattias Brändström;
`appspot issue 53094 <http://codereview.appspot.com/53094>`_.)
+* The :func:`shutil.copytree` function has two new options
+
+ * ignore_dangling_symlinks: when symlinks=false (meaning that the function
+ copy the file pointed by the symlink, not the symlink itself)
+ this option will silent the error thrown if the file doesn't exists.
+
+ * copy_function: a callable that will be used to copy files.
+ :func:`shutil.copy2` is used by default.
+
+ (Contributed by Tarek Ziade)
+
Multi-threading
===============