[NetLabel]: documentation

Documentation for the NetLabel system, this includes a basic overview
of how NetLabel works, how LSM developers can integrate it into their
favorite LSM, as well as documentation on the CIPSO related sysctl
variables.  Also, due to the difficulty of finding expired IETF
drafts, I am including the IETF CIPSO draft that is the basis of the
NetLabel CIPSO implementation.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/CREDITS b/CREDITS
index 0fe904e..cc3453a 100644
--- a/CREDITS
+++ b/CREDITS
@@ -2384,6 +2384,13 @@
 E: tmolina@cablespeed.com
 D: bug fixes, documentation, minor hackery
 
+N: Paul Moore
+E: paul.moore@hp.com
+D: NetLabel author
+S: Hewlett-Packard
+S: 110 Spit Brook Road
+S: Nashua, NH 03062
+
 N: James Morris
 E: jmorris@namei.org
 W: http://namei.org/