Reduce allocations associated with src/cpp/util/byte_buffer.cc.

fixed compile warnings treated as errors

Improve gRPC CLI

grpc thrift integration

Cronet e2e take2

Fix jenkins linux image in create script

Include missing header in ev_epoll_linux.c

fix_interop_server_arg

add PyPy to testing toolchain

Change handshaker API to support passing leftover bytes read between handshakers.

modified condition for trailing metadata.
added more information to log message.

Remove <linux/unistd.h> include for compatibility with non-glibc

Change Python one-time grpc_init/grpc_shutdown to per-object-lifetime grpc_init/grpc_shutdown

Use unique_ptr properly in QPS async tests

Add optional resource parameters to census resource test

Moved sending of initial metadata from server into server handler

Better client-side ending for QPS tests

skip test run if pypy

On my glibc (Debian Jessie amd64 if anybody cares) system,
<linux/unistd.h> is a strict subset of <sys/sycall.h>, which the file is
already including. musl libc doesn't provide this file, and with this
change all the C++ tests pass with musl libc.

This came up in bazelbuild/bazel#1492.

Make Node code generator work properly with nested types

fix c++ readme and tutorial