Merge branch 'merge-fix-log-and-contacts' into 'master'

Fix log issue at end of the script and allow empty contacts

See merge request !14
2 jobs for master in 8 minutes and 10 seconds (queued for 11 seconds)
Status Job ID Name Coverage
  Test
passed #511
jessie

00:04:07

88.0%
passed #512
stretch

00:04:02

88.0%