invoke-release 4.6.0

Reusable Invoke-based command-line release tasks for libraries and services

This provides some stock tasks built atop Invoke (http://www.pyinvoke.org/) to make releasing your libraries and services, using Git tags, easier and more streamlined. Simply configure your project with a task.py file per the instructions at https://github.com/eventbrite/invoke-release, and you can then perform robust releases like so:

$ invoke version
$ invoke release
$ invoke wheel
$ invoke branch
$ invoke rollback-release