Osamu Aoki authored Aug 25, 2018 and Sean Whitton committed Aug 25, 2018

Signed-off-by: Osamu Aoki <osamu@debian.org>

- Drop all dh_sphinxdoc workarounds; will switch to dh_linktree.
- Avoid debian/*.install files and write code that will work for all
  available translations.
- Don't include '.$lang' in the filenames of the translated HTML.
- Other simplifications and minor corrections.

Thanks to Ian Jackson for help with this.

The verbose builds change and the changelog/NEWS change will apply to
a large number of packages.