DOC: changes setup.py to Production/Stable releases

Author: jreback

setup.py

@@ -170,7 +170,7 @@ def build_extensions(self):
 URL = "http://pandas.pydata.org"
 DOWNLOAD_URL = ''
 CLASSIFIERS = [
-    'Development Status :: 4 - Beta',
+    'Development Status :: 5 - Production/Stable',
     'Environment :: Console',
     'Operating System :: OS Independent',
     'Intended Audience :: Science/Research',