* debian/README.source: Adapt according to changes in git-builpackage.
* debian/copyright: Update my copyright years.
* debian/gbp.conf: Change to new git-buildpackage syntax.
* debian/README.source: Adapt according to changes in git-builpackage.
* debian/copyright: Update my copyright years.
* debian/gbp.conf: Change to new git-buildpackage syntax.