cartage 2.2.1

Cartage provides a repeatable means to create a package for a server-side application that can be used in deployment with a configuration tool like Ansible, Chef, Puppet, or Salt. The package is created with vendored dependencies so that it can be deployed in environments with strict access control rules and without requiring development tool presence on the target server(s). This is the last release of cartage. It's been a fun ride, but Docker-based images are our future at Kinetic Commerce. There is one feature that remains useful, the release-metadata output. We have created a new, more extensible format for which we will be creating a gem to manage this. One example of the implementation can be found at: https://github.com/KineticCafe/release-metadata-ts We will also be replacing `cartage-rack` with a new gem supporting this new format.