* Drop support for Python 2.5.
* Add the lvalue attribute to expressions.
This is the same as value, except that Lisp lists are mapped to Python
lists, rather than Python tuples.
* Use the lvalue in __repr__().
* Make Symbol objects comparable using “<” and other inequality operators.
* Make it possible to disable octal-escaping of non-ASCII Unicode characters
when printing expressions into a file.
* Stop using sphinx.ext.intersphinx.
Making it work offline and consistently across different Python versions
is too much of a hassle, and it was used only to cross-reference one
well-known exception (IOError).
* Make djvu.decode.__version__ a byte string in Python 2.X.
* Improve the test suite.
-- Jakub Wilk <jwilkjwilk.net> Wed, 22 Jul 2015 21:05:11 +0200