Fixed license description in classifers

Author: timorieber

setup.py

@@ -29,7 +29,7 @@
         'Environment :: Web Environment',
         'Framework :: Django',
         'Intended Audience :: Developers',
-        'License :: OSI Approved :: ISC License',
+        'License :: OSI Approved :: ISC License (ISCL)',
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',