dbi default on .configure has changed

[Tommy Trussell]

I haven't compiled in awhile, and was following the steps for building
gnucash on the wiki at http://wiki.gnucash.org/wiki/Building
(specifically Ubuntu 9.10 and 10.04)

The .configure fails on the dbi portion UNLESS I add --disable-dbi to
the .configure options.

Since this didn't happen a few weeks ago, was the option changed to
encourage folks to try the dbi backend instead of using the
"traditional" xml file?

If so the wiki needs to be updated, and I presume this should also
include a recommendation of which database is preferred.