Merge pull request #21 in FS/freeswitch from ~PFOURNIER/freeswitch:refer_event to master

* commit 'd1abf274':
  REFER_EVENT is missing from the message names array

src/switch_core_session.c

@@ -752,6 +752,7 @@ static const char *message_names[] = {
 	"STUN_ERROR",
 	"MEDIA_RENEG",
 	"KEEPALIVE",
+	"REFER_EVENT",
 	"ANSWER_EVENT",
 	"PROGRESS_EVENT",
 	"RING_EVENT",