v3.0.0-beta-1.1 for python.

Change-Id: I5b1506385849b3b352d9717f7ffbc26237c9fac3
diff --git a/python/google/protobuf/__init__.py b/python/google/protobuf/__init__.py
index ed88480..058f94b 100755
--- a/python/google/protobuf/__init__.py
+++ b/python/google/protobuf/__init__.py
@@ -30,4 +30,4 @@
 
 # Copyright 2007 Google Inc. All Rights Reserved.
 
-__version__ = '3.0.0a4'
+__version__ = '3.0.0b1.1'