Only lowercase usernames are supported.

switch/cray: If CR_PACK_NODES is configured, then set the environment
    variable "PMI_CRAY_NO_SMP_ENV=1"
bug 1585

gating rpcs.

Signed-off-by: Danny Auble <da@schedmd.com>

added back into the system.

This improves the packing for a configuration of
topology/tree, dragonfly, select/cons_res when specific nodes
are required.

* Add "TopologyParam" configuration parameter. Optional value of "dragonfly"
  is supported.
* select/linear: Add dragonfly topology support
* select/cons_res: Add dragonfly topology support

We plan to duplicate partially duplicate a function and replaced
that function name in logs with "__func__" for better code re-use.

No changes to the test logic

Conflicts:
	doc/man/man1/sacct.1
	doc/man/man1/srun.1
	src/sacct/sacct.h

Bug 1578