This is the first formal release of the knife-shove plugin that is used to control shovey jobs from the management workstation. Shovey is a serf-based facility in goiardi, the Chef server written in golang, to run jobs on nodes without requiring an entire chef-client run. The implementation is very different, but as far as the user is concerned it's similar to Chef Push -- enough so that knife-shove is forked from knife-push.
This plugin isn't very useful without goiardi or schob, the shovey client. You can find them at https://github.com/ctdk/goiardi and https://github.com/ctdk/schob, and read more about shovey in general at https://github.com/ctdk/goiardi#shovey.