Merge pull request #1559 from google/beta-3

Merge beta-3 release branch again.

protoc-artifacts/pom.xml

@@ -10,7 +10,7 @@
   </parent>
   <groupId>com.google.protobuf</groupId>
   <artifactId>protoc</artifactId>
-  <version>3.0.0-beta-2</version>
+  <version>3.0.0-beta-3</version>
   <packaging>pom</packaging>
   <name>Protobuf Compiler</name>
   <description>

python/setup.py

@@ -219,6 +219,7 @@ if __name__ == '__main__':
       name='protobuf',
       version=GetVersion(),
       description='Protocol Buffers',
+      download_url='https://github.com/google/protobuf/releases',
       long_description="Protocol Buffers are Google's data interchange format",
       url='https://developers.google.com/protocol-buffers/',
       maintainer='protobuf@googlegroups.com',