This commit allows to control output during abnormal oshmem/ompi application
termination.
Fixed issue in backtrace output. HAVE_BACKTRACE was never set so user was limited
in control of this variable.
Two related mca variables are moved to opal layer. Corresponding aliases are
added for ompi and oshmem.
The verbose level was initialized too early
group shmem mca params together
fixed by Roman, reviewed by Igor/Mike
cmr=v1.7.5:reviewer=ompi-rm1.7
This commit was SVN r31107.
