Change Development Status to Stable in Setup.py (#268)

In preparation to GA release

Author: davidmrdavid

setup.py

@@ -40,7 +40,7 @@ def run(self, *args, **kwargs):
         'Operating System :: POSIX',
         'Operating System :: MacOS :: MacOS X',
         'Environment :: Web Environment',
-        'Development Status :: 4 - Beta',
+        'Development Status :: 5 - Production/Stable',
     ],
     license='MIT',
     python_requires='>=3.6,<4',