REFACTOR: Update setuptools script for py3k

setup.py

@@ -17,6 +17,7 @@ setup(
     url='https://github.com/confirm/mopidy-pummeluff',
     license='MIT',
     author='confirm IT solutions',
+    author_email='mopidy-pummeluff@confirm.ch',
     description='Pummeluff is a Mopidy extension which allows you to control Mopidy via RFID tags',
     long_description=open('README.rst').read(),
     packages=find_packages(exclude=[
@@ -33,7 +34,7 @@ setup(
         'develop': requirements_dev,
     },
     entry_points={
-        b'mopidy.ext': [
+        'mopidy.ext': [
             'pummeluff = mopidy_pummeluff:Extension',
         ],
     },