New version 33.18-1
    
    - Set up LD_PRELOAD for the Payloads module (vponcova)
    - Extend the start-module script (vponcova)
    - subscription: Fix authentication method switching in GUI (mkolman)
    - subscription: Make sure CDN repos are loaded and usable (mkolman)
    - Add NFS ISO support back to the NFS SetupSourceTask (jkonecny)
    - Add NFS ISO support to the NFSSourceModule (jkonecny)
    - Tear down HDD device mount if no valid installation source is found
      (jkonecny)
    - Extract ISO find algorith from harddrive (jkonecny)