Log Message:
Updated py-lxml to 3.6.1.

3.6.1 (2016-07-24)
==================

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

* GH#180: Separate option ``inline_style`` for Cleaner that only removes ``style``
  attributes instead of all styles.  Patch by Christian Pedersen.

* GH#196: Windows build support for Python 3.5.  Contribution by Maximilian Hils.

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

* GH#199: Exclude ``file`` fields from ``FormElement.form_values`` (as browsers do).
  Patch by Tomas Divis.

* GH#198, LP#1568167: Try to provide base URL from ``Resolver.resolve_string()``.
  Patch by Michael van Tellingen.

* GH#191: More accurate float serialisation in ``objectify.FloatElement``.
  Patch by Holger Joukl.

* LP#1551797: Repair XSLT error logging. Patch by Marcus Brinkmann.