0.6.0-rc1 available

[Ben Pfaff]

I put a pspp-0.6.0-rc1.tar.gz on alpha.gnu.org in /gnu/pspp.
This one untars to pspp-0.6.0 and identifies itself as PSPP
0.6.0.  It passes "make distcheck" here.  If you don't see
anything too wrong with it, then I'm inclined to upload it to
ftp.gnu.org as PSPP 0.6.0.

Please let me know what you think.

After the release, I want to try to get out bug-fix releases, at
least, on a more frequent basis than we've been doing.  Let's see
how that goes.
-- 
"If a person keeps faithfully busy each hour of the working day, he
 can count on waking up some morning to find himself one of the
 competent ones of his generation."
--William James