minor fixes

MANIFEST.in

@@ -1,3 +1,4 @@
 include LICENSE CONTRIBUTORS README.rst
 graft test
+prune test/tools
 recursive-exclude * *.pyc *.pyo *.swo *.swp

setup.cfg

@@ -0,0 +1,2 @@
+[bdist_wheel]
+universal=1

setup.py

@@ -40,7 +40,7 @@ setup(
         "Topic :: Software Development :: Testing",
         "Topic :: Software Development :: Testing :: Traffic Generation",
     ],
-    packages=find_packages(),
+    packages=find_packages(exclude=["test", "test.*"]),
     include_package_data=True,
     zip_safe=False,
     install_requires=[