debian: Clean up 0.9.7 changelog

debian: Clean up 0.9.7 changelog

- Update for maintainer name and email address, as to reflect who
  actually prepared this release of the package. It was not me,
  but I was selected due to having the first commit on the package.

  To mitigate against this, when running the `debchange --release`
  (`dch -r`) command, environment variables DEBFULLNAME and DEBEMAIL
  should be configured properly for the current user.

- Removal of NMU comment on my name, as I am not really doing a
  non-maintainer upload. I would say the 'NMU' message is fairly
  useless on this repository, as it is self-maintained here.

Signed-off-by: Valters Jansons <valter.jansons@gmail.com>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>