The link we have points to the version from Unicode 6.0.0, dated 2010.
There have been numerous updates to it since then:
  https://www.unicode.org/reports/tr44/GH-Modifications

Change the link to one that points to the current version. Also, use HTTPS..
(cherry picked from commit 64c6ac74)
Co-authored-by: Greg Price <gnprice@gmail.com>