Script Summary: Replace personal schedule icons with ones you can see.
OSCON 2009 uses blue and red colours to mark talks as favourites. That's not very good if you're colourblind. This script changes the favourite icon to a much more distinctive star.
This script only changes icons on page load. If you favourite/unfavourite a talk, the old icons are still used until the page is reloaded. (Patches welcome)
