Add SI95 transport support

The SI95 transport library provides an alternate transport
layer to NNG. The API presented by RMR on top of SI95
is exactly the same; only a link with rmr_si is needed to
make use of the alternate transport mechanism.

SI95 is NOT compatable with NNG and thus all RMR based
applications which must communicate must use the same
underlying transport library.

Signed-off-by: E. Scott Daniels <daniels@research.att.com>
Change-Id: I0a971fa0f5de2dbb2fb7a95d5428e709b630f730
diff --git a/CHANGES b/CHANGES
index 11264c5..1a46b2a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2,6 +2,11 @@
 API and build change  and fix summaries. Doc correctsions
 and/or changes are not mentioned here; see the commit messages.
 
+2020 January 16; version 3.0.0
+	Introduce support for SI95 transport library to replace NNG.
+	(RMR library versions will use leading odd numbers to avoid tag collisions
+	 with the wrapper tags which will use even numbers.)
+
 2019 December 9; version 1.13.1
 	Correct documentation and missing rel-notes update for RTD.