Support cloning a Release

When viewing a Release, I would like to be able to clone the Release into a new Release. The variables, package versions, etc. of the new Release would be set to the same values as the original Release.

This would help support hotfix scenarios, where we have the previous Release saved, and want to deploy just a single updated package. Right now I basically create a new Release and manually set all of the package versions to the existing values. The manual method doesn’t allow me to copy the older set of variables though.