Build sizes vs docs

Came cross this when updating the cvs fix. We declare size requirements as:

Also check that you have sufficient disk space. You will need about
65 MB for the source tree during compilation and about MB for
the installation directory. An empty database cluster takes about
25 MB; databases take about five times the amount of space that a
flat text file with the same data would take. If you are going to
run the regression tests you will temporarily need up to an extra
90 MB. Use the <command>df</command> command to check free disk

My source *without* compile is 82 Mb, and with a build in it (linux
i686) is 110Mb during compilations, rather than 65.
An empty cluster takes about 33Mb.
The regression database takes about 132Mb.
(this is 8.4)

Should we fix these numbers, or just remove them? They're clearly
platform dependent, but perhaps there's still a point in including
them - mainly as hints?

--
Magnus Hagander
Me: http://www.hagander.net/
Work: http://www.redpill-linpro.com/