Fixes for Swift 5

This release contains fixes for Swift 5 warnings that were emitted by SwiftGRPC and SwiftProtobuf.

• Bump version to 0.9.0 (#444) - Michael Rebello (d5f0c46)
• Try de-flaking testMultipleConnectivityObserversAreCalled. (#441) - Daniel Alm (c0eca15)
• Update SwiftProtobuf to 1.5.0 (#440) - Michael Rebello (2d822f1)
• Run CI on both Swift 4.2 and 5, and fix Swift 5 warning (#426) - Michael Rebello (0f2af51)
• Change the swiftc argument to use static Swift libraries. (#424) - Daniel Alm (6bbc15c)

Release 0.8.2

• Update vendored gRPC-core to v1.19.1. This commit also fixes a few minor problems in the vendoring
  scripts and updates a call in shim/channel.c to use a modified API.

• Update ClientCancellingTests to give clients more time to cancel before the server finishes streaming.

• Update Roots.swift to use the latest roots.pem from gRPC.

• Add SleepingEchoProvider.

• Updating podspec. gRPC-Core dependency is v1.19.0. There was no podspec published for gRPC-Core v1.19.1
  but it has no changes in the C layer: vendoring v1.19.0 yields the same code as vendoring v1.19.1.

• Changes from running "make project-carthage"

Release 0.8.1

• Update to 0.8.1 - Michael Rebello (f8738a6)
• Disable iOS 12 cellular connectivity monitor by default - Michael Rebello (58a009b)
• Implement async client test stub methods (#378) - Carlos Pages (630dfa5)
• Temporarily disable NIOClientTimeoutTests.testBidirectionalStreamingTimeoutAfterSending on Linux for now (#409) - Daniel Alm (4df501a)
• Use FileHandle instead of io.swift. (#408) - Martin Petrov (1d056f1)
• Update Echo certificate and key (#407) - George Barnett (14734c7)
• Rewrite LengthPrefixedMessageReader and tests (#397) - George Barnett (143255e)
• Allow generating test stubs separately from the client implementation (#402) - Martin Petrov (869c168)
• Generate client test stubs in a dedicated section. (#403) - Martin Petrov (90a5498)
• Add public init to client call unary stubs. (#401) - Martin Petrov (dc2e8bb)
• Mark unary async calls as @discardableResult. (#399) - Martin Petrov (f7807da)
• Generate ClientCallUnary test stubs. (#398) - Martin Petrov (c0478aa)
• Add/update scripts for vendoring dependencies (#396) - Michael Rebello (9745a76)
• Fix crashes due to mismatching responses sent to the channel when event observer factories fail. (#395) - Daniel Alm (772b78e)
• Enforce request cardinality for unary-request calls also for the case of zero request messages being sent. (#392) - Daniel Alm (d4a6366)
• Add public factory methods for CallResult. (#394) - Martin Petrov (140d34a)
• Make a few more write calls flushing. (#391) - Daniel Alm (30a7fbc)
• Refactor some properties shared by all server-side call contexts into a common ServerCallContext protocol … (#389) - Daniel Alm (c082197)

Release 0.8.0

• Update CocoaPods & Carthage for 0.8.0 release (#370) - Michael Rebello (8b064bd)
• Add ClientNetworkMonitor for tracking network changes (#387) - Michael Rebello (3b3c5c5)
• First pass implementation of NIO client (#357) - George Barnett (97ff923)
• Clean up gRPC.swift (#386) - Michael Rebello (ee0f374)
• Add ability to manually shut down channels (#384) - Michael Rebello (930440a)
• Update releasing instructions (#383) - Michael Rebello (f5c0d63)
• Comments/cleanup to Package.swift. (#371) - Daniel Alm (ba335b2)
• Refactor channel connectivity to avoid multiple spin loops (#380) - Michael Rebello (10aff09)
• Improve error handling in NIO server. (#364) - George Barnett (158c4ef)
• Fix channel credentials memory leak in shims (#369) - Kevin Sweeney (587218a)
• Make ConnectivityObserver class final (#375) - Michael Rebello (5f24269)
• Store the root certificates as a multi-line string literal. (#372) - Daniel Alm (ac3e175)
• Run ChannelCrashTests on Linux/CI (#379) - Michael Rebello (b899a30)
• Move ConnectivityState to new file & update initializer (#376) - Michael Rebello (9dff24d)
• Merge pull request #350 from sergiocampama/http1 - Tim Burks (ac1939e)
• Adds Echo Web example with functional prototype - Sergio Campama (86748a7)
• Add HTTP1 Tests for GRPCSwiftNIO - Sergio Campama (eee57da)
• Add gRPC Web support. - Sergio Campama (24c8e5d)
• Proposal to fix #362. (#363) - Alexey Gordeev (0195dfd)
• Allow client to specify metadata per call (#356) - Taeho Kim (3cd505a)
• Update SwiftProtobuf to 1.3.1 (#367) - Michael Rebello (96bf49e)
• Improve memory management in Channel (#368) - Kevin Sweeney (fcb8ab3)
• XCode 10.1 + Carthage support (#360) - Dmitry Malakhov (99d3834)
• Upgrade swift-nio to 1.12 - George Barnett (a43337c)
• Allow "FileNaming" option to be set via CLI - George Barnett (78c5fed)
• Bump podspec to 0.7.0 - Michael Rebello (6928fb2)

Release 0.7.0

• Support proto-gen-swift's proto-to-module mapping. (ff2d161 - Tony Allevato)
• Update Linux build documentation (#346) (824814b - George Barnett)
• Add libnghttp2 depdendency to Docker image (#338) (#344) (c3a03f1 - George Barnett)
• Add environment flag for BoringSSL/OpenSSL on MacOS (#341) (54659b8 - james h)
• First implementation of gRPC based on SwiftNIO (#281) (bf20e93 - Daniel Alm)
• Remove .swift-version file (d3ad74b - Yosuke Ishikawa)
• Add support for RPC status (#331) (b6dc500 - Sebastian Thiebaud)
• Fix crash during Channel with subscription is destroying (#328) (2fd06dc - slavabulgakov)
• Improve the documentation on building the protoc plugins and add a make plugin option. (48c274f - Daniel Alm)
• Remove build-carthage altogether from CI for now. (7e6e28c - Daniel Alm)
• Pull build-carthage to the beginning of the build process for faster CI iteration times on failing Carthage builds. (8cd1420 - Daniel Alm)
• Minor tweaks in preparation for SwiftGRPCNIO. (00d18f6 - Daniel Alm)
• Transmission type parameters for sync/async code generation (611e527 - Pontus Andersson)
• Re-run make project-carthage (6cc5371 - Yosuke Ishikawa)
• Replace absolute path with relative path after generating xcodeproj (30441f7 - Yosuke Ishikawa)
• Docs/add question template (#310) (0faf1d6 - tikidunpon)
• Add io.grpc. prefix to bundle identifier (c9b15b8 - Yosuke Ishikawa)
• Update README.md (02b8fc5 - Daniel Alm)
• Update README.md (8ff1778 - Daniel Alm)
• Update README.md (ec7c3e4 - Daniel Alm)
• Update README.md (52195d2 - Daniel Alm)
• Tweak Echo Readme (see #273) (a387dd6 - Daniel Alm)
• docs: add a mention about resolved issues about ssl. (5ba63b6 - tikidunpon)
• docs: add issue template for bug reporting. (660adca - tikidunpon)

Release 0.6.0

• Cut a 0.6.0 release due to the breaking changes in SwiftProtobuf 1.1 (ed8a7e5 - GitHub)
• Several fixes to the example projects. (696cd46 - Daniel Alm)
• Update CLA link to point to CNCF CLA. (c3a071b - Tim Burks)
• Update Carthage project with SwiftProtobuf 1.1.1 (9841080 - Michael Rebello)
• Update examples to SwiftProtobuf 1.1.1 (a86b934 - Michael Rebello)
• Update README with swift-protobuf version (9db4d0b - Michael Rebello)
• Update SwiftProtobuf to 1.1.1 (6c6d9be - Michael Rebello)
• Remove Linux RUNME.sh script (5dfda65 - Michael Rebello)

Release 0.5.1

• Fix -Wstrict-prototypes warning (c03c5c7 - Michael Rebello)
• Bump podspec to 0.5.1 (021075e - Michael Rebello)
• Project patch script rework. (4984951 - Daniel Alm)
• Only make the Swift Xcode project (instead of a full Xcode build) on macOS CI, as that is covered by the Carthage build already. (165f684 - Daniel Alm)
• Fix make clean and switch to Carthage debug builds on CI for improved performance. (3e8720e - Daniel Alm)
• Support folding the output of individual build steps in the Travis log. (5130063 - Daniel Alm)
• Lock the SwiftProtobuf dependency to 1.0.3, up to next minor (#289) (78ac010 - Daniel Alm)
• version SwiftGRPC-Carthage.xcodeproj after CgRPC fix (55cc056 - Jonas Vautherin)
• fix CgRPC target in generated xcodeproj files (bea6195 - Jonas Vautherin)
• Add "Releasing" section for CocoaPods to the ReadMe (36dbda1 - Michael Rebello)
• Update carthage xcodeproj (4cc9c3c - Jonas Vautherin)
• version SwiftGRPC-Carthage.xcodeproj for Carthage (e07895f - Jonas Vautherin)
• Add make target generating an xcodeproj for Carthage. (ea2babf - Jonas Vautherin)
• fix make clean target (d8b2b51 - Jonas Vautherin)
• [README] Update the link to the Echo sample project. (3eade39 - Shinping Bai)
• PR Feedback (7340be3 - Brian Hatfield)
• Expose google cgrpc credential mode (b4414b8 - Brian Hatfield)
• Remove Czlib dependency from SimpleXcode example (325c9cf - koichi.tanaka)
• Fix a header search path for CgRPC and some compile error for „Echo“ example (44dfc81 - koichi.tanaka)
• Remove Czlib from README (0c3ce55 - koichi.tanaka)
• Remove Czlib from dependencies (ec3c2a9 - koichi.tanaka)
• Update Dockerfile (62e4e3c - GitHub)
• add "make project" (05b27cb - GitHub)

Release 0.5.0

• Update podspec to version 0.5.0. (f11ad0b - Tim Burks)
• Create ServerStatus in Core (045bc17 - ito_kyohei)
• Code review fixes. (5f0531d - Daniel Alm)
• Fix compilation under Linux. (3130eea - Daniel Alm)
• Fix a bug and test for it. (b34303c - Daniel Alm)
• Add a few more tests to ensure that trailing metadata is sent as expected. (22dee41 - Daniel Alm)
• Reword documentation (c317f9d - Nate Armstrong)
• Rename "services" to "serviceProviders". (a6e8cbb - Daniel Alm)
• Add security tests to LinuxMain (df96858 - Nate Armstrong)
• Document rootCerts param (22da1da - Nate Armstrong)
• Update TestKeys generator and include cert files (1e19905 - Nate Armstrong)
• Remove comment (d5ff00d - Nate Armstrong)
• Add tests for mutual auth (18af90f - Nate Armstrong)
• For service servers, replace inheritance with composition. (98f7fa6 - Daniel Alm)
• Added requited designation to allow to create ServiceClient dynamically (12340a4 - Carlos Pages)
• Make ChannelArgument extensible with custom values. (4f9e7a5 - Daniel Alm)
• Make the build commands less verbose. (ec8f37b - Daniel Alm)
• Pass pointer (2252397 - Nate Armstrong)
• Fix memory leak and whitespace (706ed74 - Nate Armstrong)
• Cast malloc result (a2b983a - Nate Armstrong)
• Pass NULL if client certs or key are not given (f477ce5 - Nate Armstrong)
• Update ServiceClient init (b795d14 - Nate Armstrong)
• Add support for TLS mutual auth (0251dd8 - Nate Armstrong)
• Fix building with a clean Xcode and add a CI run to ensure just that. (56ecb72 - Daniel Alm)
• Fix linking with OpenSSL on Linux. (8ef093b - Daniel Alm)
• Move another compiler directive into vendor-grpc.sh. (03f4309 - Daniel Alm)
• Re-add swift-nio-zlib-support for macOS builds. (c12125b - Daniel Alm)
• Update Google sample for recent API changes. (2cc6af7 - Tim Burks)
• Move a compilation flag out of the Makefile and fix-project-settings.rb and into vendor-grpc.sh, which adds them to Sources/CgRPC/third_party/nanopb/pb.h. (4a16c13 - Daniel Alm)
• Re-add swift-nio-zlib-support for macOS builds. (0368de9 - Daniel Alm)
• Also update the Mac Travis system images to Xcode 9.3. (070170d - Daniel Alm)
• Update .travis-install.sh to Swift 4.1.1. (470fb2f - Daniel Alm)
• Update CgRPC to v1.12.0 and BoringSSL to 10.0.4 (I guess?). This change requires Swift 4.1 and Ruby (with the 'xcodeproj' gem) installed to compile if building via SPM. (75940a4 - Daniel Alm)
• Link CgRPC with openssl instead of BoringSSL under Linux. (d56e1ca - Daniel Alm)
• Add a few channel arguments (3cd89dd - Sebastian Thiebaud)
• PR changes (0d25ef8 - Sebastian Thiebaud)
• Remove print statements (ad6e022 - Sebastian Thiebaud)
• PR changes (4ca615a - Sebastian Thiebaud)
• Add comments (e853032 - Sebastian Thiebaud)
• PR changes (0891482 - Sebastian Thiebaud)
• Add timeout argument to makeCall (0d67da9 - ito_kyohei)
• PR changes (255ce88 - Sebastian Thiebaud)
• Make ServiceServer log calls to unknown methods. (e144258 - Daniel Alm)
• Replace Metadata.description with Metadata.dictionaryRepresentation.description. (588963a - Daniel Alm)
• Explicitly import dispatch (76faf09 - Chris Vanderschuere)
• Implement connectivity state property and observers (#8) (0bd14d8 - Chris Vanderschuere)

Release 0.4.3

• Add more channel arguments (@SebastianThiebaud)
• Add casts to fix warnings about ints used as void *. (@timburks)
• README updates (@rebello95)
• Fix memory leaks (@MrMage)
• Avoid a try! call (@MrMage)
• Make the test stubs thread safe (@MrMage)
• Leave zlib dependency only for non-Apple platforms (@MrMage)
• Add CocoaPods-based sample (@timburks)
• Fix broken link (@koichi.tanaka)
• Spin up dedicated queues for some operations (@MrMage)
• Dispatch the actual request handlers on new threads (@MrMage)
• Remove several now-unused DispatchQueue arguments (@MrMage)
• Make the server dispatch each request handler on its own thread (@MrMage)
• Streamline the interface of the server-side response handling code (@MrMage)
• Fix several completion queue leaks in tests (@MrMage)
• Add server/client codegen options to protoc (@rebello95)
• Add docs for protoc parameter usage (@rebello95)

Fix some issues when running `pod spec lint`

Merge pull request #213 from grpc/podspec-validation

Fix a few problems found running "pod spec lint".