Fix wrong trove classifiers.

setup.py

@@ -40,9 +40,9 @@ setup(
         "Framework :: Django",
         "Operating System :: OS Independent",
         "Programming Language :: Python",
-        "Environment :: No Input / Output (Daemon)",
+        "Environment :: No Input/Output (Daemon)",
         "Intended Audience :: Developers",
-        "License :: BSD License",
+        "License :: OSI Approved :: BSD License",
         "Operating System :: POSIX",
         "Topic :: Communications",
         "Topic :: System :: Distributed Computing",