Update changelog

changelog

@@ -19,8 +19,7 @@
       added caching of last known interface status from alarmsdb
 0.15: added some routes for initial classifier support
       added basic replacement for findAffectedCircuits
-0.16: UAT RC1
-      flatten redis storage structure
+0.16: flatten redis storage structure
       poller api
       classifier metadata api
       read snmp community string from netconf
@@ -29,13 +28,10 @@
       precompute cached list of ix public & vpn rr peers
       use external logging config file
       poller api
-0.17: UAT RC2
-      add all interfaces to poller/interfaces response
+0.17: add all interfaces to poller/interfaces response
       always use config file for celery startup
-0.18: UAT RC3
-      current/next database latching
-0.19: UAT RC4
-      added flush & latch to /jobs/update
+0.18: current/next database latching
+0.19: added flush & latch to /jobs/update
       improved address-to-interface lookup performance
       added top-level services to responses
-      
+0.20: included both v4 & v6 addresses in peering info