Really include tests in source distribution (sdist)

[koobs]

Commit 69df30a purported to include tests in source distributions. The current sdist for 0.7.1 still doesn't include the tests directory.

I believe this is due to the use of include instead of recursive include in MANIFEST.in

With this change, tests/ is added to the sdist:

running sdist
running egg_info
writing requirements to slumber.egg-info/requires.txt
writing slumber.egg-info/PKG-INFO
writing top-level names to slumber.egg-info/top_level.txt
writing dependency_links to slumber.egg-info/dependency_links.txt
reading manifest file 'slumber.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'slumber.egg-info/SOURCES.txt'
running check
creating slumber-0.7.1
creating slumber-0.7.1/docs
creating slumber-0.7.1/slumber
creating slumber-0.7.1/slumber.egg-info
creating slumber-0.7.1/tests
making hard links in slumber-0.7.1...
hard linking CHANGELOG.rst -> slumber-0.7.1
hard linking LICENSE.txt -> slumber-0.7.1
hard linking MANIFEST.in -> slumber-0.7.1
hard linking README.rst -> slumber-0.7.1
hard linking setup.py -> slumber-0.7.1
hard linking docs/howitworks.rst -> slumber-0.7.1/docs
hard linking docs/index.rst -> slumber-0.7.1/docs
hard linking docs/options.rst -> slumber-0.7.1/docs
hard linking docs/tutorial.rst -> slumber-0.7.1/docs
hard linking slumber/__init__.py -> slumber-0.7.1/slumber
hard linking slumber/exceptions.py -> slumber-0.7.1/slumber
hard linking slumber/serialize.py -> slumber-0.7.1/slumber
hard linking slumber/utils.py -> slumber-0.7.1/slumber
hard linking slumber.egg-info/PKG-INFO -> slumber-0.7.1/slumber.egg-info
hard linking slumber.egg-info/SOURCES.txt -> slumber-0.7.1/slumber.egg-info
hard linking slumber.egg-info/dependency_links.txt -> slumber-0.7.1/slumber.egg-info
hard linking slumber.egg-info/not-zip-safe -> slumber-0.7.1/slumber.egg-info
hard linking slumber.egg-info/requires.txt -> slumber-0.7.1/slumber.egg-info
hard linking slumber.egg-info/top_level.txt -> slumber-0.7.1/slumber.egg-info
hard linking tests/__init__.py -> slumber-0.7.1/tests
hard linking tests/resource.py -> slumber-0.7.1/tests
hard linking tests/serializer.py -> slumber-0.7.1/tests
hard linking tests/utils.py -> slumber-0.7.1/tests
Writing slumber-0.7.1/setup.cfg
creating dist
Creating tar archive
removing 'slumber-0.7.1' (and everything under it)