Merge branch 'generate-apt-sources' into 'master'

debci-generate-apt-sources: Add and use a script to generate sources.list

Closes #77

See merge request !89
4 jobs for master in 10 minutes and 30 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Test
passed #248408
ruby-style

00:01:47

passed #248407
stable

00:09:50

passed #248406
testing

00:10:29

passed #248405
unstable

00:10:10