This will be a tracker for libwnck tasklist appearance bugs.  It will avoid bugs
involving actions (e.g. when I click on X it doesn't do what I expect, or I'd
like to be able to do Y.  Rather, just things like "Z doesn't look right"). 
I'll start it off by adding the following dependencies in a minute:

 32646 - rotate tasklist text in side panels
 52225 - sort windows by either launch time or most recently used time
 81222 - should iconified windows show in other workspaces?
 84411 - allow having only minimized windows in the tasklist
 83393 - libwnck ignores focus-line-width of theme
 91655 - figure out how to present minimized windows (dimmed,bracketed,etc.)
 99604 - better abbreviation of titles -- mozilla/netscape algorithm
102663 - show a window as active when one of its transients has focus
110705 - tasklist icons should scale with tasklist size
113507 - inverted colours for some tasklist icons
120439 - add urgent flashing to the tasklist (depends on gtk+ bug 150594)
125023 - fix tasklist sizing behavior (cf. bug 155870)
141181 - dialogs with empty titles are listed in the tasklist
151198 - add spacing between buttons
154040 - window list for single panel busted with xinerama
154041 - window list busted with xinerama temporarily
155865 - padding around icons and text is too small
155867 - default icon is wrong size and uses wrong metaphor
155868 - ellipsize window titles when too long
155870 - make a max size for the buttons in the tasklist (cf. bug 125023)