Bug 1253

Bug 1255

Conflicts:
	doc/man/man1/salloc.1
	doc/man/man1/sbatch.1
	doc/man/man1/srun.1

Bug 1084

This applies to salloc, sbatch, and srun.
bug 1254

Avoid including unused CPUs in a job's allocation when cores or sockets are
allocated. A minor variation of this has been tested with version 14.11, but
I do not want to risk introducing a problem with this new logic.
bug 1212

The CPU binding should be based upon the CPU_Bind flag rather than
Select flag.

Conflicts:
	src/slurmd/slurmd/req.c

Do not requeue a batch job from slurmd daemon if it is killed while in
the process of being launched (a race condition introduced in v14.03.9).
This partially reverts commit 2bc9bc29

CR_CORE/SOCKET system lay out tasks correctly.

This is a complete fix for bug 1247

You can also reference commit 7461c119 for tests to give correct
functionality.

Conflicts:
	src/common/pack.c

This reverts commit bc7ea952.

This ended up causing more issues than it solved, reverting.

Unless sbatch submits a job to multiple clusters, do not bother
to commuicate with slurmdbd

15.08, but this keeps track of allocated cpus as well as usable cpus:
meaning if a user requests --hint=nomultithread they are allocated cpus
that aren't usable since they requested to only use the 1st thread on
each core.

reference bug 1247

with CR_PACK_NODES.

Really do commit d388dd67 a different way to get the same info and
be able to lay out tasks correctly when --hint=nomultithread.

tests on a 4 core 8 thread system are
srun -n6 --hint=nomultithread --exclusive whereami | sort -h
srun: cpu count 6
   0 snowflake0 - MASK:0x1
   1 snowflake0 - MASK:0x2
   2 snowflake0 - MASK:0x4
   3 snowflake0 - MASK:0x8
   4 snowflake1 - MASK:0x1
   5 snowflake1 - MASK:0x2

and

srun -n10 -N5 --hint=nomultithread --exclusive whereami | sort -h
srun: cpu count 10
   0 snowflake0 - MASK:0x1
   1 snowflake0 - MASK:0x2
   2 snowflake0 - MASK:0x4
   3 snowflake0 - MASK:0x8
   4 snowflake1 - MASK:0x1
   5 snowflake1 - MASK:0x2
   6 snowflake1 - MASK:0x4
   7 snowflake2 - MASK:0x1
   8 snowflake3 - MASK:0x1
   9 snowflake4 - MASK:0x1

Move will-run test for multiple clusters from the sbatch code into the API
so that it can be used with DRMAA.