https://github.com/grpc/grpc/pull/5118 - "title": "Script to automatically create a Jenkins linux worker.",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5121 - "title": "Refactor dockerfiles",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5138 - "title": "Fix python centos6 distribtest",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5188 - "title": "Upmerge changes from release-0_13",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5239 - "title": "Update C# docs for 0.13 release",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5245 - "title": "Update C# examples to 0.13.0 packages",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5309 - "title": "Rename C# Preconditions to GrpcPreconditions",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5314 - "title": "C# qps worker updates",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5329 - "title": "Build protoc artifacts on Linux and Mac",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5334 - "title": "Building protoc artifacts on Windows",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5369 - "title": "Run tests improvements",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5375 - "title": "Fix C# build",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5427 - "title": "Don't fail when generating report.xml on gcc4.4 ",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5429 - "title": "Fix python distribtest on fedora21",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5430 - "title": "Fix ruby distribtest on centos6",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5440 - "title": "Fix fedora20 python distribtest",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5448 - "title": "Fix C# artifacts compatibility",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5464 - "title": "Package protoc artifacts for all platforms in Grpc.Tools nuget",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5466 - "title": "Windows C# distribtests",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5483 - "title": "Fix sanity test for C#'s 'build_packages.bat.template'",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5516 - "title": "Fix run_tests.py reporting for multiple test runs",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5517 - "title": "Don't do a \"safety\" Cancel when recv_close_on_server.cancelled is set.",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5541 - "title": "Make python test suites run in parallel",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5569 - "title": "Run build_ext in build_python step",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5577 - "title": "Increase timeout for interop tests",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5607 - "title": "Revert \"Pass a non-infinite deadline to grpc_completion_queue_next() to prevent queues from blocking indefinitely in poll()\"",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5629 - "title": "Add test_lite custom command for parallel test running.",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5936 - "title": "A few 0.13 backports",    "login": "jtattermusch",
https://github.com/grpc/grpc/pull/5957 - "title": "make grpc_pollset_set_create for windows match the header",    "login": "jtattermusch",