Remove an extra unref

remove opts param from signature

minor fix in TLS error message

add missing defines on windows (WIN64)

partial fix for #546

Less verbose logs on windows

Avoid writing build.json during a test.

allow empty messages in gRPC on windows

Merge branch 'php_basestub_metadata_callback' of github.com:stanley-cheung/grpc into php_basestub_metadata_callback

The test environment might be read only, so let's not modify a file just for running a test.

Updates the sample ObjC app to use protocol buffer messages

Creating nuget package for gRPC C#

Support update metadata callback function in php BaseStub

Generated with:
protoc --plugin=/usr/local/bin/protoc-gen-objc route_guide.proto
--proto_path=/Users/jcanizales/git/protobuf-objc/src/compiler
--proto_path=. --objc_out="./"

Fixes build problem in the ObjC sample client and adds local tests

On account of the change in the podspec structure.

Added JSON option for gRPC file loading