Eliminate zip distribution

[CharliePoole]

In converting the the build to use the new TestCentric.Cake.Recipe, I have eliminated the zip package. Those using needing to create their own centralized local copy of the code can still do so by using options of the nuget.exe command to install the nuget package in any desired location. Scripts may need to be updated to match the directory structure of that package.

We are flagging this as a breaking change to call attention to it. Including it in a minor release breaks semver but we're doing it for two reasons:

1. The 2.0 beta is already used by many users and is well on it's way to final release.
2. The impact appears to be minor or non-existent for most users.

[CharliePoole]

🎉 This issue has been resolved in version 1.7.0 🎉

The release is available on:

• GitHub Release
• NuGet Package
• Chocolatey Package