Change requirements

Author: Víctor Ramos

setup.py

@@ -50,7 +50,7 @@
             "sphinx-me >= 0.1.2",
             "unidecode",
             "django-email-extras >= 0.2",
-            "django >= 1.8, < 2.1",
+            "django >= 1.8, < 2.2",
             "future <= 0.15.0",
         ],
         classifiers = [
@@ -63,6 +63,7 @@
             "Programming Language :: Python :: 3",
             "Programming Language :: Python :: 3.4",
             "Programming Language :: Python :: 3.5",
+            "Programming Language :: Python :: 3.6",
             "Framework :: Django",
             "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
             "Topic :: Internet :: WWW/HTTP :: Site Management",