Some more cleanups. Remove direct references to ORTE by changing OMPI_CAST_ORTE_NAME -> OMPI_CAST_RTE_NAME. Ensure that ORTE tools (mpirun, orted, tools) set the OPAL proc structure fields so OPAL knows what is going on and uses the correct print functions (still need to fix the problem for non-MPI apps). Properly return uint32_t from the opal utilities instead of int32_t as that is what the ORTE process name fields contain.

Thanks to Gilles for pointing out some of the discrepancies.
Okay, now handle the non-MPI apps
Apparently, someone else is destructing the opal_proc_t, so don't destruct it ourselves