I'm currently working on an almost complete rewrite of much of the treeview control. Some things will remain the same, but the meat of the control(the redrawing code etc) will be enhanced to reduce flicker. I'm also implementing a bunch of behavior changes so Wine more correctly matches the treeview Windows control. Once this rewrite is done I'll incorporate all of Corel's changes into it as well. I'm thinking about doing all of the changes at once, but it makes little sense to hold the control back for a month when people can get the benifit of many of the improvements before the work is 100% complete.
FOAF updates: Trust rankings are now exported, making the data available to other users and websites. An external FOAF URI has been added, allowing users to link to an additional FOAF file.
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If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!