Merge branch 'prepare-1.9' into 'master'

prepared 1.9

See merge request !4
2 jobs for master in 3 minutes and 5 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #48770
linux
build-linux

00:02:42

 
  Build Noarch
failed #48771
conda
build-noarch

00:00:23

 
Name Stage Failure
failed
build-noarch Build Noarch
    channel_urls=tuple(m.config.channel_urls))
File "/opt/conda/lib/python3.7/site-packages/conda_build/environ.py", line 758, in get_install_actions
raise DependencyNeedsBuildingError(exc, subdir=subdir)
conda_build.exceptions.DependencyNeedsBuildingError: Unsatisfiable dependencies for platform linux-64: {'pytango'}
bash: cannot set terminal process group (-1): Inappropriate ioctl for device
bash: no job control in this shell
groupadd: group 'conda' already exists
useradd: user 'conda' already exists
ERROR: Job failed: exit code 1