Fix set_cipher_list on modern OpenSSL

Also port forward a few changes from #422.
diff --git a/setup.py b/setup.py
index 2edb712..510359d 100755
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 #
 
 """
-Installation script for the OpenSSL module.
+Installation script for the OpenSSL package.
 """
 
 import codecs