Re: [tz] Simplification and unification of scheme:// anchors

This is following up to a discussion in January 2013 about simplifying the use of URLs in the data, e.g.: http://mm.icann.org/pipermail/tz/2013-January/018574.html Steffen, thanks for putting all that work into it. We can use the simplification of the data files, I think, even if we don't try to verify the URLs. I pushed the attached patch into the experimental repository on gitub.