Add list of contributors to docs/credits.rst
Be explicit about encoding file contents as UTF-8 in unit tests (issue #63)
Merge branch 'develop' of https://github.com/PythonCharmers/python-future into develop
Merge branch 'develop' of https://github.com/PythonCharmers/python-future into develop
Merge branch 'develop' of https://github.com/PythonCharmers/python-future into develop

Conflicts:
	docs/credits.rst
	future/tests/base.py