finish migration to gitlab-ci

* .gitlab-ci.yml: Add dput tag.
* debian/changelog: Bump version.
3 jobs for master in 3 minutes and 19 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #178
build-stable

00:00:39

passed #179
build-unstable

00:00:30

 
  Publish
passed #180
dput
publish

00:02:40