Prevent the Node server from locking up when shutting down

PHP: fix build failure on mac

Up asan/tsan timeouts - they need it

Temporary fix on Python doc to alleviate confusion.

cc grpc/grpc-common#274, #2896

Add code and message to base.NoSuchMethodError

Cleanup test, initialize correctly

Add ostream support for string_ref

Use string_ref for incoming metadata

Move core/profiling/timers_preciseclock.h to core/support/ such that we

Make run_tests.py robust against port_server not starting

Refactor default host name resolution

Dont try to parallelize OpenSSL build

Prevent occasional AppDomainUnloadedException from nunit

Windows builds need longer

Test was failing on mac because gpr time code was not initialized. Whilst here, clean up the test so that I can understand it again.

Outlaw illegal metadata characters

Added missing payloads to streaming compressed test

Add per-test timeouts to Python test harness.

add missing headers from 2945

Test KVO compliance for call.responseHeaders