Forgot one Windows XP move.
Added indeterminate ProgressBars to the portable frontend and fixed up ProgressBar's documentation.
Added GTK+ indeterminate ProgressBars.
Added indeterminate ProgressBar code on Windows and fixed up a few other things along the way.
Added indeterminate ProgressBar code for Mac OS X.
Removed indeterminate ProgressBars from todo.md; that's now done.
Changed the way uitask is dispatched on GTK+ to make event handling not a CPU hog.
Whoops, that commit that was to remove the ProgressBar line from todo.md actually removed the wrong line; fixed.