Collective.xmltestreport

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Bug fixes:


- Add compatibility with `zope.testrunner` 5.1+.
Fixes https://github.com/zopefoundation/zope.testrunner/issues/103
[maurits] (103)

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Bug fixes:

- Fix ``environment`` option. The ``key`` was used as the ``value``.

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Breaking changes:

- Add compatibility with Python 2 and Python 3.
[gforcada]

- Switch from optparse to argparse to work with zope.testrunner >= 4.9.0
[pbauer]
- Drop python 2.6 dependency.
[gforcada]

Bug fixes:

- Clean up the code.
[gforcada]

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Fixes:

- Fixed UnicodeDecodeError when error message contains non-ascii.
Fixes https://github.com/collective/collective.xmltestreport/issues/16
[maurits]

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- Dependency to z3c.recipe.scripts declared but it was nowhere used.
Removed dependency. This makes it work with newer zc.buildout again.
Fixes 10
[jensens]

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- Fix error on utf-8 error string.
[bloodbare]

- Fix encoding problem in python 3.
[cedricmessiant]