New version 27.19-1
    
    - rpmostreepayload: Set up /var first (walters)
    - rpmostreepayload: Explicitly create /var/lib before tmpfiles (walters)
    - rpmostreepayload: Rework mount setup to support admin-defined mounts (walters)
    - rpmostreepayload: try to verify local ostree repo cache (dusty)
    - rpmostreepayload: ignore 
    - rpmostreepayload: use correct secondary url location (dusty)
    - Add tracking of requirements application to requirements container.  (rvykydal)
    - Add langpacks via payload requirements (rvykydal)
    - Add NTP_PACKAGE via installation requirements (rvykydal)
    - timezone: simplify kickstart setup metod (rvykydal)
    - Store payload (packages, groups) requirements in a container. (rvykydal)
    - Fix anaconda --help fail with traceback (#1470514) (jkonecny)
    - rpmostreepayload: Do /sysroot mount non-recursively (walters)
    - Add isolated-test makefile target (jkonecny)
    - gui: show supported locales on Atomic Host installs (jlebon)