Fix security issue caused by insecure file path handling triggered by
the failure of a Prolog script. To exploit this a user needs to
anticipate or cause the Prolog to fail for their job.

(This commit is slightly different from the fix to the 15.08 branch.)

CVE-2016-10030.

Fix security issue caused by insecure file path handling triggered by
the failure of a Prolog script. To exploit this a user needs to
anticipate or cause the Prolog to fail for their job.

CVE-2016-10030.

This modifies the logic in commit e089b63a for better clarity

Prevent "stray" jobs from using resources when the srun/salloc
will never launch the actual compute tasks.

Bug 3344.

PluginDir is allowed to be a PATH-style list of directories; remove
incorrect test of the variable as if it were a single directory and
comment that the check for that is elsewhere.

Bug 3361.

Expect is unable to work with more than 32-bit numbers, so it can't
properly test task affinity on KNL with 272 threads

- 2 x Integer handling issues (CONSTANT_EXPRESSION_RESULT)

Warning flag -Wempty-body in clang-3.7 now errors on this, split
macro definition up over multiple lines to silence.

Fix a memory leak on error conditions and a possibly unterminated string
  as reported by Coverity

Revision to 06fbdd75
  Previous logic was causing tests 1.87 and 15.19 to fail sometimes
  due to a race condition by adding a "Job allocation revoked"
  message to salloc output even if no allocation occured.
bug 3351

this is a corrections to some of the ligic in commit 3851f619
  that commit set a pointer to NULL, which it should not have.

Bug introduced yesterday in commit 239cfa96

Several possibly unterminated string operations
Several memory leak fixes

This is a revision of commit 72d8d9b7,
  which introduced a parsing bug

Fix several memory leaks and possible out-of-bound memory references
  reported by Coverity.

Bad array pointer for srun --no-alloc
Added function error check in srun
Memory leak in sstat

Fix several memory leaks and other high-priority errors reported by Coverity

instead of calling g_slurm_auth_get_uid again.

Add SchedulerParameters option of spec_cores_first to select specialized
    cores from the lowest rather than highest number cores and sockets.
bug 3349