Update to 3.3.0:

3.3.0 (2014-01-26)
==================

Bugs fixed
----------

* The heuristic that distinguishes file paths from URLs was tightened
  to produce less false negatives.

3.3.0beta5 (2014-01-18)
=======================

Features added
--------------

* The PEP 393 unicode parsing support gained a fallback for wchar strings
  which might still be somewhat common on Windows systems.

Bugs fixed
----------

* Several error handling problems were fixed throughout the code base that
  could previously lead to exceptions being silently swallowed or not
  properly reported.

* The C-API function ``appendChild()`` is now deprecated as it does not
  propagate exceptions (its return type is ``void``).  The new function
  ``appendChildToElement()`` was added as a safe replacement.

* Passing a string into ``fromstringlist()`` raises an exception instead of
  parsing the string character by character.

Other changes
-------------

* Document cleanup code was simplified using the new GC features in
  Cython 0.20.

3.3.0beta4 (2014-01-12)
=======================

Bugs fixed
----------

* The (empty) value returned by the ``attrib`` property of Entity and Comment
  objects was mutable.

* Element class lookup wasn't available for the new pull parsers or when using
  a custom parser target.

* Setting Element attributes on instantiation with both the ``attrib`` argument
  and keyword arguments could modify the mapping passed as ``attrib``.

* LP#1266171: DTDs instantiated from internal/external subsets (i.e. through
  the docinfo property) lost their attribute declarations.

Other changes
-------------

* Built with Cython 0.20pre (gitrev 012ae82eb) to prepare support for
  Python 3.4.

3.3.0beta3 (2014-01-02)
=======================

Features added
--------------

* Unicode string parsing was optimised for Python 3.3 (PEP 393).

Bugs fixed
----------

* HTML parsing of Unicode strings could misdecode the input on some platforms.

* Crash in xmlfile() when closing open elements out of order in an error case.

3.3.0beta2 (2013-12-20)
=======================

Features added
--------------

* ``iterparse()`` supports the ``recover`` option.

Bugs fixed
----------

* Crash in ``iterparse()`` for HTML parsing.

* Crash in target parsing with attributes.

Other changes
-------------

* The safety check in the read-only tree implementation (e.g. used by
  ``PythonElementClassLookup``) raises a more appropriate ``ReferenceError``
  for illegal access after tree disposal instead of an ``AssertionError``.
  This should only impact test code that specifically checks the original
  behaviour.

3.3.0beta1 (2013-12-12)
=======================

Features added
--------------

* New option ``handle_failures`` in ``make_links_absolute()`` and
  ``resolve_base_href()`` (lxml.html) that enables ignoring or
  discarding links that fail to parse as URLs.

* New parser classes ``XMLPullParser`` and ``HTMLPullParser`` for
  incremental parsing, as implemented for ElementTree in Python 3.4.

* ``iterparse()`` enables recovery mode by default for HTML parsing
  (``html=True``).

Bugs fixed
----------

* LP#1255132: crash when trying to run validation over non-Element (e.g.
  comment or PI).

* Error messages in the log and in exception messages that originated
  from libxml2 could accidentally be picked up from preceding warnings
  instead of the actual error.

* The ``ElementMaker`` in lxml.objectify did not accept a dict as
  argument for adding attributes to the element it's building. This
  works as in lxml.builder now.

* LP#1228881: ``repr(XSLTAccessControl)`` failed in Python 3.

* Raise ``ValueError`` when trying to append an Element to itself or
  to one of its own descendants, instead of running into an infinite
  loop.

* LP#1206077: htmldiff discarded whitespace from the output.

* Compressed plain-text serialisation to file-like objects was broken.

* lxml.html.formfill: Fix textarea form filling.
  The textarea used to be cleared before the new content was set,
  which removed the name attribute.

Other changes
-------------

* Some basic API classes use freelists internally for faster
  instantiation.  This can speed up some ``iterparse()`` scenarios,
  for example.

* ``iterparse()`` was rewritten to use the new ``*PullParser``
  classes internally instead of being a parser itself.

3.2.5 (2014-01-02)
==================

Bugs fixed
----------

* Crash in xmlfile() when closing open elements out of order in an error case.

* Crash in target parsing with attributes.

* LP#1255132: crash when trying to run validation over non-Element (e.g.
  comment or PI).


(wiz)