Set developent status classifiert to inactive

Author: codingjoe

setup.cfg

@@ -9,7 +9,7 @@ url = https://github.com/codingjoe/django-stdimage
 license = MIT
 license_file = LICENSE
 classifier =
-    Development Status :: 5 - Production/Stable
+    Development Status :: 7 - Inactive
     Environment :: Web Environment
     Framework :: Django
     Topic :: Multimedia :: Graphics :: Graphics Conversion