Doh: scripts need Leo's official ivars

[Edward K. Ream]

For the last several days I have been wondering whether it would possible to remove many of Leo's so-called official ivars.  LeoDocs.leo has details, in case you are wondering what they are.  The idea was that removing them might simplify Leo's too-complex startup code.

This morning I even took a close look at pyzo's ivars. They are simpler than Leo's, and pyzo's code that instantiates various gui elements is simpler than Leo's.

But on my walk I saw that, Doh!, Leo is a scripting environment! Ivars such as c.frame.body.wrapper are necessary and useful for many scripts.  It would be folly to remove them.

So I appear to have been suffering an unnecessary case of pyzo envy :-)  The lesson, for all of Leo's devs, is that quite a bit of Leo's complexity arises because, yes, Leo does a lot more than pyzo.

Edward