There were quite a few changes due to slurm changes from pre11 to pre12
and i also removed some void** function arguments.

select/cray: share the select_ops symbol table

This removes code duplication from the select/cray plugin, by 
 * sharing the (almost completely identical) declaration of the select_opts struct;
 * and also the slurm_select_context_t struct;
 * moving typedefs from .c into .h;
 * adjusting header-includes and renaming as required.

Further changes:
 * added the missing 'plugin_id' to the symbol list in other_select.c (otherwise
   the symbols would be shifted, causing segfault);
 * __select_jobinfo_t_defined is already set in slurm.h(.in), hence no longer
   repeated in node_select.h;
 * removed unused forward declarations to destroy the context.

  which we have the create function for

    libraries are not generally usable.

    safe version of the MySQL library is used.

when -Wextra is specified as a compile option

value of cpus-per-task into account

the --mem-per-cpu is over the system limit then automatically set
the value for --cpus-per-task and divide the --mem-per-cpu by that
same factor

 accompanied r21335

    - Persistent option selections for each tab page
    - Clean up topology in grids
    - Leverage AllowGroups and Hidden options
    - Cascade full-info popups for ease of selection

   the exit code of the job script (or salloc) while derived_ec contains the
   highest exit code of all the job steps.
-- Added SLURM_JOB_EXIT_CODE and SLURM_JOB_DERIVED_EC variables to the
   EpilogSlurmctld environment

    job specifies it's memory requirement, then more CPUs than requested will
    automatically be allocated to a job to honor the MaxMemPerCPU parameter.

#ifdef CR_DEBUG   to
if (select_debug_flags & DEBUG_FLAG_CPU_BIND)
for more flexibility in logging