Final tweaks to make the setup.py metadata conform to standard guidelines.

(See https://docs.python.org/3.5/distutils/setupscript.html#meta-data)

Author: adobeDan

setup.py

@@ -4,10 +4,18 @@
 setup(name='adobe-umapi',
       version='1.0.1',
       description='Adobe User Management API (UMAPI) client - see http://bit.ly/2hwkVrs',
+      classifiers=[
+          'Development Status :: 5 - Production/Stable',
+          'Programming Language :: Python :: 2.7',
+          'Programming Language :: Python :: 3.5',
+          'License :: OSI Approved :: MIT License',
+          'Intended Audience :: Developers',
+          'Intended Audience :: System Administrators',
+      ],
       url='https://github.com/adobe-apiplatform/adobe-umapi.py',
-      author='Daniel Brotsky',
-      author_email='[email protected]',
-      license='Copyright (c) 2016 Adobe Systems Incorporated. All rights reserved. Distributed under the MIT license.',
+      maintainer='Daniel Brotsky',
+      maintainer_email='[email protected]',
+      license='MIT',
       packages=find_packages(),
       install_requires=[
         'requests',