Make NEWS match the 1.6.2 Release Notes

Reviewed-on: http://gerrit.openafs.org/9601
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Ken Dreyer <ktdreyer@ktdreyer.com>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>
(cherry picked from commit b74728590ce14f9b6c3235f0b51f8865caa9427d)

Change-Id: I61acc90efd22e9577aa0447b93b3f81c6339da27
Reviewed-on: http://gerrit.openafs.org/9663
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>