Replacement of the OWL conversion script with a link

In January 2017 we removed the OWL conversion script from the International Edition package, and have since been publishing it alongside the International Edition in each Release.

However, as this script is now stable and self-maintaining (wrt release dates, etc) there should be no need to actually include the physical file anymore - instead we can streamline the release further by simply posting a link to the script in either the Release Notes or the Release wording in MLDS.

Please send your thoughts whenever you have chance (this is not an urgent request), and we will discuss and agree in the April TRAG meeting.

Thanks very much, and a very merry Christmas to all!

Andrew