Update license i PyPI classifiers

setup.py

@@ -52,14 +52,14 @@ setup(
     data_files=data_files,
     scripts=['bin/mopidy'],
     url='http://www.mopidy.com/',
-    license='GPLv2',
+    license='Apache License, Version 2.0',
     description='MPD server with Spotify support',
     long_description=open('README.rst').read(),
     classifiers=[
         'Development Status :: 3 - Alpha',
         'Environment :: No Input/Output (Daemon)',
         'Intended Audience :: End Users/Desktop',
-        'License :: OSI Approved :: GNU General Public License (GPL)',
+        'License :: OSI Approved :: Apache Software License',
         'Operating System :: MacOS :: MacOS X',
         'Operating System :: POSIX :: Linux',
         'Programming Language :: Python :: 2.6',