First mkpkg release!

(2019-05-23)

mkpkg ("make package") creates installer packages for a distributable binary. It's based on the golang installer process, the go build tooling in particular. It comes with a command-line utility, and a golang package that you can import into your toolchain if that's more your style.

This is the first proper release of mkpkg. In preparation for go 1.13, in which go.mod files and go modules are the primary way to handle go dependencies, we are going to do an official release of all our modules. This will be version v0.1.0 of mkpkg.