idle3-tools 0.9.1 Change or disable Western Digital hard drives' Idle3 timer

Idle3-tools provides a utility to get, set, or disable the Idle3 timer present in many Western Digital hard drives. This timer is part of the "IntelliPark" feature that stops the disk when not in use. Unfortunately, the default timer setting is not well suited to Linux or other *nix systems, and can dramatically shorten the lifespan of the drive if left unchecked.