Add py37 (#4298)
* test against python 3.7 for windows
* update docs to say we test on 3.7
* more succinct
* maybe make this actually work.
* link properly
* moar changes
diff --git a/setup.py b/setup.py
index 593925e..2fbbd04 100644
--- a/setup.py
+++ b/setup.py
@@ -273,6 +273,7 @@
"Programming Language :: Python :: 3.4",
"Programming Language :: Python :: 3.5",
"Programming Language :: Python :: 3.6",
+ "Programming Language :: Python :: 3.7",
"Programming Language :: Python :: Implementation :: CPython",
"Programming Language :: Python :: Implementation :: PyPy",
"Topic :: Security :: Cryptography",