- reverted 1.6 change

- reverted 1.6 change
  - commit log totally irrelevant to commit changes
  - first chunk of patch totally wrong, $2 was there for a reason
  - place for such "state" files is in /var
  - if AC is not a proper dir for your ac connector then make this file
    generic (not for your machine) by commenting relevant log messages
    and making note that this path needs to be configured for user's
    machine

Changed files:
    acpid.battery.sh -> 1.8