add hyperlink to spunnel spank plugin
Commit 38068d21 expanded the reason for unavailable jobs but
it also need client side.
Exports eio_new_initial_obj to the plugins
and initialize kvs_seq on mpi/pmi2 setup to support launching.
Update news file
fter commit b1c5716da63f which added support for NO_VAL in
slurmdb_purge_string(), there is no reason to check for this specific
value anymore in read_config().
Update RELEASE_NOTES and documentation.
Merge branch 'slurm-14.11'