Rover: version to 4.2.0

Author: rmackay9

Rover/version.h

@@ -6,14 +6,14 @@
 
 #include "ap_version.h"
 
-#define THISFIRMWARE "ArduRover V4.2.0-rc4"
+#define THISFIRMWARE "ArduRover V4.2.0"
 
 // the following line is parsed by the autotest scripts
-#define FIRMWARE_VERSION 4,2,0,FIRMWARE_VERSION_TYPE_RC+4
+#define FIRMWARE_VERSION 4,2,0,FIRMWARE_VERSION_TYPE_OFFICIAL
 
 #define FW_MAJOR 4
 #define FW_MINOR 2
 #define FW_PATCH 0
-#define FW_TYPE FIRMWARE_VERSION_TYPE_RC
+#define FW_TYPE FIRMWARE_VERSION_TYPE_OFFICIAL
 
 #include <AP_Common/AP_FWVersionDefine.h>