added boot-1.0.5

Boot is a shell interpreter for scripts written in Clojure.
Homepage: https://github.com/tailrecursion/boot

This formula  adds support for installing the jar, like the leiningen formula,
or for building from head.

Nope.

boot is very similar to lein. It's just a single binary.
Like lein it resolves dependencies, but it does it [inline](https://github.com/tailrecursion/boot/blob/master/README.md#script-dependencies)
This makes it useful for using clojure like ruby, for writing scripts.

The idea of using a jar resource was borrowed from [leiningen's formula](https://github.com/Homebrew/homebrew/blob/master/Library/Formula/leiningen.rb#L16).