thorium: restore old timeout value

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
transport: remove branch instruction

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
transport: use MPI_ANY_TAG

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
thorium_node: add FLAG_STARTED_INITIAL_ACTORS

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
thorium_node: avoid regulator code path

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
tests: don't write to stdout, this is expensive on Blue Gene/Q

printf is very expensive:

80863072593 (+422972) thorium_node:enter
80863512622 (+440029) thorium_node:after_receive
80863945908 (+433286) thorium_node:after_send
80864369496 (+423588) thorium_node:after_worker_pool_work
80864795827 (+426331) thorium_node:after_node_running
80865223342 (+427515) thorium_node:after_node_test
80865654730 (+431388) thorium_node:after_triage
80866074388 (+419658) thorium_node:after_regulator
80866498187 (+423799) thorium_node:exit

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>