Linux: Updated RedHat spec file with new demand attach servers and docs

Linux: Updated RedHat spec file with new demand attach servers and docs

Added the following to the openafs-server package:
dafileserver
dafssync-debug
dasalvager
davolserver
salvageserver
salvsync-debug

Added the man pages for the above.
Added a man page for krb.excl

Change-Id: Ifac99e77de4f7b07dc6e76df0237b1960a73cb0d
Reviewed-on: http://gerrit.openafs.org/2630
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>