carto/protobuf @ 3.0.x

Jisi Liu 6e11540b32 Bump version number to 3.0.2		%!s(int64=9) %!d(string=hai) anos
..
protobuf	6e11540b32 Bump version number to 3.0.2	%!s(int64=9) %!d(string=hai) anos
__init__.py	786f80fe66 Add a modified patch from craigcitro@ to handle namespace sharing.	%!s(int64=9) %!d(string=hai) anos