Release procedure

• Move unreleased changes in CHANGELOG to new version heading.
• Ensure BreakingChanges.txt up to date and move unreleased breaking changes to new version heading.
• Ensure Acknowledgements up to date.
• Make final commit and tag this commit as "vx.y.z" (z changes on patches, y on new features or minor changes to behaviour, x for breaking API changes).
• Build using: ./build.sh All mode=Release targets=ALL. This will build to output/release. (This is for Git bash shell on Windows; otherwise try build.bat)
• Test nuget package on a project using a local repository.
• Push final commit and tags to main repo.
• Push release to nuget: ThirdParty\NuGet\NuGet.exe push (path to .nupkg) -Source https://www.nuget.org/api/v2/package. (Make sure nuget.exe is up-to-date first! nuget update -self)
• Copy release ZIP from output to Source/Docs/Downloads
• Update source/docs/index.html to point to new ZIP file to download (NSubstitute-x.x.0.0.zip)
• Commit website changes and push to repo
• Re-build and publish website (built to output dir).
• Announce (mailing list, twitter, and unleash carrier pigeons to spread the joyous news). Be sure to credit people who contributed to the release!
• ...
• Profit!

Note: I had trouble with jekyll v0.11.2 on Windows & Ruby193 (maruku would give undefined method errors). I had to gem install jekyll --version '0.11.0', and then uninstall version 0.11.2 of jekyll using gem uninstall jekyll to get it to work. I also had to gem install liquid --version '2.2.2' and uninstall the later version of that, as per this StackOverflow answer.