Force compilation of protobuf using -fPIC.

Grpc ruby update readme

Disabled httpcli_test, and ran build cleaner.

Conflicts:
	Makefile

Various MacOS build fixes.

Conflicts:
	Makefile
	build.json
	vsprojects/vs2013/grpc.vcxproj
	vsprojects/vs2013/grpc.vcxproj.filters
	vsprojects/vs2013/grpc_shared.vcxproj
	vsprojects/vs2013/grpc_shared.vcxproj.filters
	vsprojects/vs2013/grpc_unsecure.vcxproj
	vsprojects/vs2013/grpc_unsecure.vcxproj.filters

Add a facility to control tracing without recompiling

-) Secure files shouldn't be in the base grpc.
-) grpc++ depends on gpr.
-) grpc++ depends on protobuf (!)

The framework.assembly package.

More comment improvements

fix comment about the installation location

This will help greatly when it comes to diagnosing customer issues.

Fix ruby generator build

This provides for now what should be a nicer interface for code
generation than that of the Face layer. In terms of abstraction
it's conceptually very similar so the two should probably be
merged as soon as is reasonable.

clean up some internal path and names

Always run build cleaner

Make run_tests.py respect the run= attribute

Minor changes for compatibility across different compilers

Debian packages libgrpc and libgrpc-dev

Fix TSAN reported error in fd_posix.c

added NuGet package specifications

Defining an installation prefix for grpc's root certs at compilation time.

Make interop server respond to sigint

This will allow the test to shut down cleanly, and avoid failing.

Removing the hardcoded SSL roots.