add license info to metadata (#260)

aaronjheng · methane · commit 2eb6e75db1d4 · 2017-12-31T11:52:50.000+09:00
diff --git a/setup.py b/setup.py
@@ -112,6 +112,7 @@ def __init__(self, *args, **kwargs):
       description=desc,
       long_description=long_desc,
       url='http://msgpack.org/',
+      license='Apache 2.0',
       classifiers=[
           'Programming Language :: Python :: 2',
           'Programming Language :: Python :: 2.7',
