d/control: add Arturo Borrero Gonzalez as uploader

Alexander kindly invited me to co-maintain this package.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
d/rules: delete useless comment

Let's delete this useless comment.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
d/rules: do a verbose build

Debian's buildd reports that we need a verbose build in orden to scan build
logs and perform additional checks in the package.

This can be easily solved with ./configure --disable-silent-rules

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
d/control: add autotools-dev as build-dep

This fix lintian warning:
W: conntrack source: outdated-autotools-helper-file build-aux/config.guess

Lintian itself suggests to build-depends on autotools-dev.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
d/control: bump standars to 3.9.6

No special changes required.

See https://www.debian.org/doc/debian-policy/upgrading-checklist.html for
details.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>