Add root drive mapping to default config file

[Mike Hearn]

> No, but if they users get this error, it means that they did not configure
> Wine properly... So that we are only hiding the problem anyway.

Hmm? It's pretty common for people to have mount points, extra
directories or whatever that aren't detected by wineinstall (or they use
a binary package that does not autodetect these things).

> What makes you sure that they will have set a fake C drive properly or
> created the sub-directories and all that stuff ?

Well, if they compile from source and read the README they should have
done so, and RPMs will set that up for them. It's when they insert a CD
or zip disk for instance, and then wonder why they can't run setup.exe
from it that causes problems.

-- 
Mike Hearn <m.hearn at signal.qinetiq.com>
QinetiQ - Malvern Technology Center