Textedit popup window - release candidate

@erendrake.  This is a possible release for textedit you can use to make your release today.  I worked out the kinks except for one (with the scrollbar - see the commit message on commit #381b9ae).

I promise I'll keep my hands off the code for the rest of today (Wednesday) so you have a chance to make your release without me always wanting "one more thing" added.  What's there now is good enough to show, I think.