Fixed handling of NLP header in SNA
XID handoff table for LLC, and XID dissection for SNA format 3
HPR optional segments in SNA
Most important control vectors in SNA
Route setup messages in SNA
Additional LLC DSAPs for SNA
svn path=/trunk/; revision=7131
for protocols that run inside 802.2 LLC register themselves with it
using "dissector_add()".
Make various dissectors static if they can be, and remove from header
files declarations of those dissectors.
svn path=/trunk/; revision=1872
Guy Harris