API changes:

* Add package stats for stats collection and processing.
* Add package tap for transport layer inbound interceptor.
* Add dial option grpc.FailOnNonTempDialError to control
  if gRPC should fail on non-temporary dial error.

Other fixes:
* Fix a transport layer logical race in quota pool.
* Use InfoDepth/FatalDepth in glogger.go.

* Use the correct error in defer call in recvResponse() to

  avoid miscounting of the streams quota for unary rpcs.
* Update generated code and server reflection code to comply
  with the change to the grpc generator. Now the grpc support
  version is SupportPackageIsVersion4.

API changes:

* ServerStream interface
 - Add SetHeader()

Behavior changes:
* Concurrent Server.GracefulStop() calls all behave equivalently
* Server.Serve() won't exit when lis.Accept fails with temporary errors

Include some API changes for grpclb:

* TransportCredentials interface
  - Add Clone() and OverrideServerName()
* Balancer interface
  - Change Start(string) error to Start(string, BalancerConfig) error

This is the first GA (General Availability) release of gRPC-go.

Release v1.0.0