debian: Housekeep location.install and changelog

debian: Housekeep location.install and changelog

In order to run `debuild` for an easy Debian package locally, the
debian/*.install files must list all build results. For version 0.9.16
there is a new pre-built database.db file that belongs with `location`
package, and the `man8` pages have been moved to `man1`.

Additionally, the changelog is added for version 0.9.16 as to maintain
the centralized reference (inside this upstream repository). The
author/timestamp is based on the 0.9.16 tag metadata tracked in Git.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>