Merge branch 't38273-extract-roles-reconfigurations' into 'main'

roles/mediaserver/vars/main.yml

roles/mediavault/defaults/main.yml

roles/mediavault/tasks/base.yml

roles/mediavault/tasks/configure.yml

roles/mediavault/tasks/configure/mailer.yml

roles/mediavault/tasks/install.yml

roles/mediavault/tasks/main.yml

roles/mediavault/vars/main.yml

roles/mediaworker/README.md

roles/mediaworker/defaults/main.yml

roles/mediaworker/handlers/main.yml

roles/mediaworker/tasks/celerity_base_config.yml

roles/mediaworker/tasks/configure.yml

roles/mediaworker/tasks/configure/celerity-conf.yml

roles/mediaworker/tasks/install.yml

roles/mediaworker/tasks/main.yml

roles/mediaworker/vars/main.yml

roles/mirismanager/README.md

roles/mirismanager/defaults/main.yml

roles/mirismanager/tasks/base.yml