VDR ACPI power button handling daemon (vdrpbd)
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vdrpbd is meant to be used as a replacement to the usually used "acpid", for
VDR based HTPC systems. As it is developed specially for VDR systems.

Features:
- Faster than acpid with all the required external scripts.
- Emergency reboot feature. You don't loose the power button as safe emergency
  exit button. Just press it four times within three seconds and a clean reboot
  is triggered.
- Very easy to set up. If you want, you can just copy the "vdrpbd" file to your
  VDR system and execute it. VDR should react to the power button immediately!
- Systemd integration. If systemd is detected, then vdrpbd tries to register
  itself as "power button inhibitor". The module "Net::DBus" is required for
  this to work.