Merge branch '125-in-view-duplicate-zone-not-detected-by-named-checkconf' into 'master'

Resolve "in-view duplicate zone not detected by named-checkconf"

Closes #125

See merge request !97
4 jobs for 131-add-util-check-changes-to-ci-for-master in 15 minutes and 35 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #3329
linux docker
build:debian:sid:amd64

00:05:20

passed #3330
linux docker
build:debian:sid:i386

00:06:13

 
  Test
canceled #3331
linux docker
test:debian:sid:amd64

00:09:22

canceled #3332
linux docker
test:debian:sid:i386

00:09:21