checkpoint "save" button should be called "submit"

[binford2k]

The term "save" indicates that a value is being stored somewhere. "Submit" more accurately indicates that the value is just being sent somewhere. Is there a better term for it?

The key for this string is https://github.com/puppetlabs/showoff/blob/5363be11fec1a62fbd3cc242959df894e15846cc/locales/en.yml#L106