bump changelog timestamp

Merge branch 'knobs'

Version 3.0

new upstream release

recommend zdbsp

Refresh patches

use doom-node-builder/bsp instead of glbsp

fix jre dependencies; asciidoctor privacy

use asciidoctor(1) for docs

Upstream use a maven plugin to invoke asciidoctor which is not available
in Debian, so instead run it by hand.

Don't ship the .adoc sources to /usr/share/doc/wadc.

Release.

correct debian/copyright file, new version

Target a different version