Zenodo url which points to current release

FYI: Zenodo has introduced a new feature described here http://blog.zenodo.org/2017/05/30/doi-versioning-launched/

Basically, one is given a DOI which points to the most recent version of a zenodo release. This is probably most useful in cases where we need to have a DOI before there’s a new DOI available for the latest release.

Versioning sounds like a good idea to me.