Changed leading character of instructions to support grep story counting
Updating REGRESSIONS based on past 24 hours or so
Further effort to check off stories that now seem done...

...or at least, not seen recently.
Merge pull request #840 from bradcray/triage-sep-blc

REGRESSIONS updates based on last night's runs, housecleaning

(Getting ready to turn this over Thomas, I'm doing today's updates and cleaning up):

New regressions
---------------
* Colorado State Jacobi tests failed due to lack of OpenMP support on
  darwin, due to clang (should now be skipif'd properly)

* Colorado State cfd-mini C test failed on darwin and cygwin for
  surprising reasons -- got the wrong problem size for no clear
  reason (CathieO)

* All Colorado State C tests failed for GASnet due to the -nl flag
  being passed to them which they weren't expecting (should now be
  fixed)

* Noted that test_10k_begins sometimes gets a timeout (like two nights
  ago), sometimes gets a signal 11 (like last night) on linux32


Improvements
------------
* Removed other sporadic failures that I don't have any record
  of seeing fail in the past month; also removed stories that
  correspond to sporadic failures I've been removing from
  REGRESSIONS.


Misc
----
* Added separators to categories to separate stable regressions
  from sporadic ones.

* Recategorized prgenv-cray bad output as another of our sporadic
  cases, as it passed the next time around

* Changed marker for instructions in REGRESSIONS-stories to better
  support grepping the number of open, closed, and partially open
  stories