Add flag to mpirun_rsh to export all environment variables to the executing
process. This allows us to specify additional ones from pre_exec without
hard-coding it in the agent.
Reinstitute outputting of processor name.
More correct error message regarding kernels.
Notes work better than brain (thanks Andre!).
Use APRUN for non-MPI tasks on BR2 too.
Use mpirun_rsh on trestles.
iterate on benchmarks and plots --now working again
Merge branch 'devel' of github.com:radical-cybertools/radical.pilot into devel
Merge branch 'master' of github.com:radical-cybertools/radical.pilot
Merge branch 'master' of github.com:radical-cybertools/radical.pilot
remove merge artefact
Merge branch 'master' into devel

Conflicts:
	src/radical/pilot/agent/radical-pilot-agent-multicore.py
Merge branch 'master' of github.com:radical-cybertools/radical.pilot
manually merged Mark's changes that I accidentally reverted...
Merge branch 'devel' of https://github.com/radical-cybertools/radical.pilot into devel
Add note about execution limitation on Yellowstone.
Merge branch 'devel' of github.com:radical-cybertools/radical.pilot into devel
fixes #347
Get rid of xalt ibrun c^hwrapper.
Add SGI dplace launch method for blacklight.