[bt-devel] General book support

[Martin Gruner]

> I spent some time working on the general book support in BibleTime.
>
> I think it's now almost bugfree and almost fully usable. The optional tree
> is working, too. If you find bugs please report.
> See www.bibletime.de for a screenshot of GBS.

I forgot to mention that we should consider implementing a chapter-based 
display for books too. See the EnumaElish screenshot for an example of a 
module where this would be necessary.

Martin