BUGS:

- the "toggle position" button is disabled; this is now an rc-file setting

- if a client is moved between workspaces, it's task isn't "removed" from the 
taskbar until the taskbar is refreshed.  A minor problem, but a problem 
nonetheless.

- KDE mini-icons don't work any more (they used to work in fspanel).  The 
function used to retrieve the KDE icons causes segfaults, so I disabled it.  
Currently, only monochrome and gnome icons are retrieved.  I'm not too worried 
about it, since I don't use KDE.

- efficiency - only need to repaint single tasks in many situations (instead 
of entire bar).  example: iconify_notify




