update change log for planned release

Changelog

@@ -1,3 +1,21 @@
+2017-XX-XX CORE 5.0
+  * DEVELOPMENT:
+    - support for editorconfig to help standardize development across IDEs, from the defined configuration file
+    - support for sonarqube analysis, from the defined configuration file
+  * DAEMON:
+    - code cleanup and improvements to adhere to coding standards (SonarQube)
+    - leverage "logzero" module to make easy usage of the standard logging module
+    - improvements to documentation across the code base
+    - initial work to separate the dependence on TCP API messaging from the core library (easier core scripting)
+    - beta support for running core in openvswitch mode, leveraging ovs bridges, instead of linux bridges
+  * SERVICES:
+    - added Ryu SDN controller service
+    - added Open vSwitch service
+  * TEST:
+    - added unit/integration tests to support validating changes going forward
+  * BUGFIXES:
+    - merged pull requests for: #115, #110, #109, #107, #106, #105, #103, #102, #101, #96
+
 2015-06-05 CORE 4.8
   * EMANE:
     - support for EMANE 0.9.2