protected void OnRemove(object se, EventArgs args)
{
Gtk.TreeIter iter;
Gtk.TreeModel model;
if (libraryList.Selection.GetSelected (out model, out iter)) {
string s = (string) store.GetValue (iter, 0);
store.Remove (ref iter);
SteticMain.SteticApp.RemoveWidgetLibrary (s);
}
}