API and build change and fix summaries. Doc correctsions
and/or changes are not mentioned here; see the commit messages.
+2020 February 26; version 3.2.5
+ Fix source address bug in SI95 receive/send funcitons.
+ Fix threading issues involving session disconnection in SI95
+ Remove unused SI95 status variable.
+
+2020 February 24; version 3.2.4
+ Fix meid bug (RIC-220) causing core dump.
+
+2020 February 21; version 3.2.3
+ Add meid routing support to the SI95 interface.
+
+2020 February 20; version 3.2.2
+ Fix receive thread related core dump (ring early unlock).
+
+2020 February 19; version 3.2.1
+ Added missing message types (E2-Setup)
+
+2020 February 18; version 3.2.0
+ Added support for new Route Manager and it's ability to accept
+ a request for table update.
+
+2020 February 14; version 3.1.3
+ Fix bug in SIsend which was causing a core dump in some cases
+ where the application attempted to send on a connection that
+ had disconnected. (RIC-207).
+
+2020 February 6; version 3.1.2
+ Fix disconnection detection bug in interface to SI95.
+
+2020 January 31; verison 3.1.1
+ Allow route table thread logging to be completely disabled
+ when logging is turned off.
+
+2020 January 26; verison 3.1.0
+ First step to allowing the user programme to control messages
+ written to standard error. Introduces the rmr_set_vlevel()
+ function, and related environment variable.
+
2020 January 24; verison 3.0.5
Fix bug in SI95 with receive buffer allocation.