bug 754

There was bad logic if an update was being performed on multiple tasks
of a job record resulting in a fatal error.

works for update, hold, release, suspend, resume, requeue and
requeuehold operations

confusion and wasn't ever handled in the allocation.  A user can now only
specify the option with srun.

Conflicts:
	src/sbatch/opt.c

and only caused confusion since the cpu_bind options mostly refer to a
step we opted to only allow srun to set them in future versions.

Defer job step initiation of required GRES are in use by other steps rather
than immediately returning an error.
bug 1056

without this change, slurmd would abort on reconfiguration

Prevent fatal error on "scontrol reconfig"

when a job runs to completion.

With this commit, the slurm controller will now initialize the configured
layouts and parse their configuration files at startup.

Note that even if no layouts were configured, a "base" layout is
automatically built in slurm-layouts_load_config(). This "base" layout is
containing every nodes defined in the system, linked together as a flat tree.

(Adapted for slurm-14.11 by Matthieu Hautreux <matthieu.hautreux@cea.fr>)

This commit introduces the entity, layout and layouts manager related structures
corresponding to the core of the layouts logic.

The layouts manager is responsible for initializing and loading the layouts
specified in the slurm.conf "Layouts=" pragma retrieved using
slurm_get_layouts().

(Adapted for slurm-14.11 by Matthieu Hautreux <matthieu.hautreux@cea.fr>)

This new pragma will be used to define the list of layouts to load at startup.
It will consist of comma separated values of layouts type and optional names,
respecting the following pattern : Layouts=layout_type[/layout_name][,...]
In case the name would not be defined, "default" would be assumed.

(Adapted for slurm-14.11 by Matthieu Hautreux <matthieu.hautreux@cea.fr>)

Apply freefunc on the node and no longer its internal data in xtree_free
Add XTREE_GROWING xtree_walk target to ease building a tree adding childs
while walking it

(Adapted for slurm-14.11 by Matthieu Hautreux <matthieu.hautreux@cea.fr>)

Current slurm parser is mostly dedicated to manage key=value entries in a
configuration file, providing the capability to manage more complex
configuration lines like "key=value attr1=val1 attr2=val2 ..." through the
implementation of custom handlers.

However, custom handlers often had to rewrite their own parsing logic in
order to handle the various subcomponents/attributes.

This commit enhances the parsing logic in order to ease the management of
complex lines using nested parsing options definitions, automatic expansions of
array-like attributes and automatic merges of related lines.

These enhancements are the basis of the layouts configurations parsing logic

(Adapted for slurm-14.11 by Matthieu Hautreux <matthieu.hautreux@cea.fr>)

Improve scheduling of jobs in reservations that overlaps other reservations.
bug 1051

had --network= specified.

ProfileHDF5Dir directory as well as all it's sub-directories and files.

This isn't the case in the current code so this isn't as big of a deal.

This logic will also be removed in 14.11 so it become less of a deal as
well, but just to be safe we cover the base.