Silence the DeprecationWarning raised by importing mimetools in BaseHTTPServer.
This does have an unfortunate side-effect of silencing the warning for all
subsequent code that imports mimetools as well since the warning is only
executed upon the first import of mimetools.
diff --git a/Misc/NEWS b/Misc/NEWS
index 0a16e8f..53158d1 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -48,6 +48,9 @@
 Library
 -------
 
+- Silence the DeprecationWarning raised when importing mimetools in
+  BaseHTTPServer.
+
 - Issue #2776: fixed small issue when handling an URL with double slash
   after a 302 response in the case of not going through a proxy.