Continuing to try and whip nightly regression script into better shape.  These changes attempt to make it not so hard-coded to my username:
Continuing to try and whip nightly regression script into
better shape.  These changes attempt to make it not so
hard-coded to my username:

- cleaned up existing options a bit as well as help message
  that describes them

- set the CHPLHOME variable (if you don't already) to indicate where
  your Chapel installation is

- set CHPL_UW_CVS_USERNAME to indicate your pseudo-username on
  gemelli (if you don't already)


git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@1951 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

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