Update support info
Select/cray - Modify build to enable direct use of libslurm library.

These changes are required so that select/cray can load select/linear,
  which is a bit more complex than the other select plugin structures.
Export plugin_context_create and plugin_context_destroy symbols from
  libslurm.so.
Correct typo in exported hostlist_sort symbol name
Define some functions in select/cray to avoid undefined symbols if
  the plugin is loaded via libslurm rather than from a slurm command
  (which has all of the required symbols)
Add path for liblua

On Redhat 6 based distros the lua library name is liblua-5.1.so.
Installing the lua-devel package will create the liblua.so symlink, but
if that isn't installed then the lua job submit plugin will fail to
load.
I'm attaching a patch that adds liblua-5.1.so to the search path.
Merge branch 'slurm-2.5'