PDETask is derived from Xfce4 Task Manager.
Original authors of XFce4 Task Manager:
Johannes Zellner <webmaster@nebulon.de>
翼varo Lopes <alvieboy@alvie.com>

On 2008-04-26, the PDE team derive PDETask from 
Xfce4 Task Manager for PDE project.
Copyright (C) 2008 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
