NLM v2 is allegedly just the same as NLM v1, and NLM v3 is allegedly

NLM v2 is allegedly just the same as NLM v1, and NLM v3 is allegedly
just NLM v1 plus some stuff for use by DOS/Windows clients, according to
The Open Group's "XNFS, Version 3W" ("This document describes version 3
which is backward compatible with versions 1 and 2."); copy the NLM v1
table of dissectors to the tables for NLM v2 and NLM v3.

Mark all procedures for which we lack reply dissectors and for which
there *is* a reply type, or for which we lack call dissectors and for
which there is a call type, with /* XXX */.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@2921 f5534014-38df-0310-8fa8-9805f1628bb7