* When running the test suite, don't copy stdout and stderr output to a log
  file, as this would break under LC_ALL=C, PYTHONWARNING=d and python3.X
  (testall-no-stdout-stderr-redirect.diff).
* Use build/py2 and build/py3 for build directories.
* Remove excessive whitespace from debian/control.
* Drop unused virtual package: rst2man.
* Install Python 3 version of rst-buildhtml.
* Fix a typo in rst2xetex manual page. Thanks to Günter Milde for the bug
  report.
* Drop unused header file for rst2newlatex manual page.
* Backport upstream patch to add missing import (add-missing-import.diff).
* Backport upstream patches to fix encoding issues with Python 3
  (fix-*-encoding-issues.diff).