Update NEWS file with Karl's changes

NEWS

+UNRELEASED
+
+    [ssh] Change the class "ssh::pam" to "base::ssh::pam".  This should
+    only affect people who are setting ssh::pam variables via Hiera, or
+    via class parameters.  Clients setting base::ssh variables in any
+    way are not affected. [akkornel]
+
+    [ssh] Add support for the pam_slurm module.  This is for clients using
+    the SLURM job scheduler, and who want to prevent users from logging in
+    without an allocation.  This is disabled by default.  Also add the
+    pam_slurm_bypass parameter, which is a file containing a list of users
+    (one per line) who should not be blocked by pam_slurm. [aseishas]
+
+    [syslog] On Ubuntu, have files and directories by owned by the
+    "syslog" user, and the "adm" group.
+
+    [wallet] When running inside a Packer build, do not attempt to retrieve
+    things from wallet. [akkornel]
+
+    [os::debian] More @ symbols into ERB templates. [akkornel]
+
 release/005.001 (2016-12-11)
 
     Add "path" attributes to several exec resources. This will be required