Through-the-web customization of forms

As far as I remember, Aspelli is silent about how to avoid through-the-web
customization of forms.

To add an institution property to member data requires two steps.

1. Add the property to the portal_memberdata properties in the ZMI (this
part can supposedly be done with a product install, but I didn't go there.)

2. Customize the "personalize_form". The native version of this is found in
the ZMI in "portal_skins/portal_prefs/personalize_form". When customizing
it goes to "portal_skins/custom", as you know.

So there are two ways to customize. One way is to edit right there in the
browser. The other is to upload a file. If we stick to this second method, then
we can use subversion on these things.

Have you done any customization like that on things that we can put in subversion?
I'm wondering how best to organize.

Also, this is the same place where we can hide the Kupu option and make
other minor changes.

I say minor, because, for example, this is not the place to put the group email
opt-out buttons. I keep thinking about that one and it's much harder then just
a simple property since it's dynamic depending on what groups the user is in.