Log Message:
Update py-weasyprint to 0.36.

Version 0.36
------------

Released on 2017-02-25.

New features:

* `#407 <https://github.com/Kozea/WeasyPrint/pull/407>`_:
  Handle ::first-letter.
* `#423 <https://github.com/Kozea/WeasyPrint/pull/423>`_:
  Warn user about broken cairo versions.

Bug fixes:

* `#411 <https://github.com/Kozea/WeasyPrint/pull/411>`_:
  Typos fixed in command-line help.

Version 0.35
------------

Released on 2017-02-25.

Bug fixes:

* `#410 <https://github.com/Kozea/WeasyPrint/pull/410>`_:
  Fix AssertionError in split_text_box.