[Seaside] cleaning up in 2.5

[radoslav hodnicak]

On Wed, 8 Sep 2004, Avi Bryant wrote:

> Since Halos are a development tool only, we can be a bit sloppy about
> them - for example, maybe we should clear the Halos dict every time
> someone hits "toggle halos"?   In theory this would have annoying
> effects if two people were using halos concurrently on the same image,
> but that seems an unlikely case (and the consequences wouldn't be
> *that* bad).

Yeah that sounds ok