Windows: Uninitialized TargetNameLength/Offset

In RDR_PopulateCurrentEntry it is possible for TargetNameLength and
TargetNameOffset to be uninitialized resulting in stack garbage being
returned to the redirector.  This can result in a blue screen.

Reviewed-on: http://gerrit.openafs.org/10373
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit c0a33ddd82736d71faf2585495102fe1e4b88eb0)

Change-Id: I17391f176118d89756773b62e5004dda0cfe1703
Reviewed-on: http://gerrit.openafs.org/10384
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Windows: RDRLib Worker Thread shutdown

The thread waiting to unload the library is polling the state of
the AFS_WORKER_INITIALIZED flag in the PoolContext->State field
for each worker.  Ensure that the thread performs no actions other than
PsTerminateSystemThread() after clearing the AFS_WORKER_INITIALIZED flag.

Reviewed-on: http://gerrit.openafs.org/10383
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit 064558a69281398d1dc6873453449eee9b3a8d8d)

Change-Id: Idc6b873db6e07bcd3ed1139d736b75d3518b16ff
Reviewed-on: http://gerrit.openafs.org/10385
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>