More improvements to the nightly regression testing scripts for portability.  In order to run it, one should now set two environment variables:
More improvements to the nightly regression testing
scripts for portability.  In order to run it, one
should now set two environment variables:

        CHPL_NIGHTLY_LOGDIR -- directory for logs to go in
        CHPL_NIGHTLY_STATDIR -- directory for stats to go in

Otherwise, everything should be reasonably platform
and user dependent (am about to do some testing to
be sure).

John, I'm going to see if I can get regressions running on
the Suns over the weekend.  If so, then we'll add your
two platforms to the mix next week.


git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@2182 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

sungeunchoi/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,hildeth/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,hildeth/chapel,chizarlicious/chapel,sungeunchoi/chapel,hildeth/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,sungeunchoi/chapel,chizarlicious/chapel,chizarlicious/chapel,chizarlicious/chapel,hildeth/chapel,CoryMcCartan/chapel,chizarlicious/chapel,hildeth/chapel,chizarlicious/chapel,CoryMcCartan/chapel,hildeth/chapel,hildeth/chapel,CoryMcCartan/chapel,chizarlicious/chapel