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

Re-install census_filters

Fix gpr_slice leak in server on connection reset

Expand error handling to ignore all errors printing output

Make googletest a submodule

Add a comment describing out views on killing

Don't fail a build on failure to kill a docker instance

Use a custom exception in test_control

Status code conformance in grpc._links

C# add generated docs

It's quite ok for a docker instance to already be dead.

Make certain constants unsigned to avoid triggering -Wsign-compare

Whitespace is now disallowed in metadata keys.

sockaddr_resolver now supports comma-separated list of IPs

Made udp_server.c compile for iOS

Adding grpc::string_ref class

- Strict subset of
  http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html
- Useful to avoid unnecessary string copies.

Use of ValueError is too easily misconstrued as an actual defect in the
system under test.

Four small Python bugfixes

Fix parameter reassignment defect

A test suite for the RPC Framework Face interface

While a full Cartesian product across all variables isn't yet present
this is still reasonably comprehensive.