[chimera-dev] ordering in file browser

David sent me a mail saying he would prefer the Chimera file browsing widget to separate directories from files in each column, directories first. I am fine with adding this behavior. The question is whether I should allow both the old and new behavior via a preference? I guess I'm polling to see who would prefer the separate files/directories vs. the current purely-alphabetical sorting. Then I can decide whether to keep both behaviors and if I do, which one should be the default. Thanks for your participation! --Eric