Merge remote-tracking branch 'chapel-lang/master' into remove-nightly-stats
Remove stats tracking from nightly.

Besides the fact that the stats kept in these files are no longer used,
maintaining them required RCS. This commit removes all stats tracking from
nightly and thus removes RCS as a dependency. Yay!
Remove all references to CHPL_NIGHTLY_STATDIR in bash helper scripts.
Merge pull request #104 from thomasvandoren/remove-nightly-stats

Remove stats tracking from nightly.

Besides the fact that the stats kept in these files are no longer used, maintaining them required RCS. This removes all stats tracking from nightly and thus removes RCS as a dependency. Yay!

@bradcray said this when asked whether or not to keep this stats tracking:

I think we used to track #s of successes and failures in a simple
.dat-style file using RCS? (though this was a million years ago, and I
don't think anyone's used it in ages).  I don't think we should anymore,
in any case.  If/when we need it again, we can do something more modern.

reviewed by @vasslitvinov