The broadcast was temporarily removed for testing purposes

# Conflicts:
#	src/slurmctld/proc_req.c

Bug 3097

Value stored to 'rc' is never read.

Add message type strings and job IDs where possible

Failed RPCs get requeued and retried with exponential backup.
Repeatedly failing RPCs get logged (need to improve that).

Fix correct macro this time, Tim Wickberg's fault for prior failed patch.

Bug 3605.

This reverts commit 53523c54.

Bug 3605.

We were changing the buffers' processed offset to the beginning of the
body part of the offset to pack just the body part of the buffer but
once this happened we lost how much actual data was in the buffer. So we
were packing the whole buffer which could be larger than what was
actually being used in the buffer.

Changed job id print formats from %d to %u in several places

This reverts commit 831da38e.

Doesn't work with MySQL 5.7.17-0

Needed for federated cluster performance and locking issues

Log function name being logged, switch to use __func_ argument
  to prevent them from getting out of sync again

Report "MsgType=#" rather than just "Unknown"

Removing values in the middle of an enum will shift all of the values
and break backward compatability for old RPCs..
Broken in commit 1b0d9851

This reverts commit 979db782.

Partial backport from 17.11 commit 4874f988.

Bug 2484

This reverts commit 9fb8a8a3.

determine what the min, req and max node counts should be.