At first glance, it looks like KFM is dead. I'm going to look at KCFinder and see if I can get it to integrate. I'll probably still have the KFM because the extension needs it. KCFinder looks like it should be easy to integrate into security assist.
P.S. CKEditor 4 is out. Hopefully HTMLEditor will get a facelift soon. CKEditor 4 is similar enough, it shouldn't be hard. In fact, it may be upgradable ourselves. I just have not looked at whether there are significant configuration changes yet, but much of the program core remained the same, or so I have read.
HTMLEditor really needs a facelift since KFM has fallen so far behind.