remove 'else' code, release lock by destructor

Allowing us to import google::protobuf::int64.

If for any reason, our definition of gpr_int64 is different from the definition of google::protobuf::int64, the virtual override would fail, as this needs to be of the precisely exactly the same type.
That change allows us to use protobuf's int64 definition.

Switched protobufjs dependency to npm package instead of GitHub

Adding support for alternative protobuf libraries.

Add a no_barrier_load atomic operation.

Fix duplicated symbols

Fix port selection for Python server.

Removing the "using std::string" in the python plugin code.

Fix client sending invalid GOAWAY last-stream-id

Commit 31e65bea introduces a bug which causes starting server on a randomly
selected port.

Fix duplicated symbols caused by having definition instead of declaration in
header file.

Adding refresh token credentials.

Update Python Dockerfile's unit test list

Improved node install instructions and bumped version

Started using immutable collections and other code cleanup

Setting up stylecop to ignore generated files and fixing style

Remove a const from a variable that should be mutable.

deadline is passed by address to PyArg_ParseTuple to update its value.
However, deadline is a const double, so attempting to change its value
is undefined behavior. Remove the const to have well-defined behavior.

Fixing C# codestyle

Previously client sends its own initiated stream ID in last-stream-id
field of GOAWAY, which misses the point in HTTP/2 specification.
Unless server push is utilized heavily, client should not assign its
transport's last_incoming_stream_id, since it is a response from
server to client's initiated stream ID.  This commit fixes it.

See GH-1024

Add missing GRPC_OVERRIDE, NFC

Improving MacOS.

Use this to relax the acq_loads in some fd_posix assertions. The primary
goal here is to avoid masking potential iomgr races from tsan.

Trying to make the MacOS experience better by removing various spurious messages, and increasing coverage of library paths.

C# server-side TLS support