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)