Update TRIAGE and REGRESSIONS

REGRESSIONS:
+ performance/bradc/opequals is silenced for baseline with a .skipif
+ users/ferguson/aa/aa1 is fixed
- two additional thread-ring execution timeouts

TRIAGE:
- npb/ep/mcahir/ep execution timeouts similar to cg-sparse and ra-dist


git-svn-id: http://svn.code.sf.net/p/chapel/code/trunk@21917 3a8e244f-b0f2-452b-bcba-4c88e055c3ca
Slurm constraints are better explained now.


git-svn-id: http://svn.code.sf.net/p/chapel/code/trunk@21918 3a8e244f-b0f2-452b-bcba-4c88e055c3ca