Update MockLink/Offline Copter to 3.5

src/FirmwarePlugin/APM/APMResources.qrc

@@ -51,7 +51,7 @@
         <file alias="APMParameterFactMetaData.Rover.3.2.xml">APMParameterFactMetaData.Rover.3.2.xml</file>
         <file alias="APMParameterFactMetaData.Sub.3.4.xml">APMParameterFactMetaData.Sub.3.4.xml</file>
         <file alias="APMParameterFactMetaData.Sub.3.5.xml">APMParameterFactMetaData.Sub.3.5.xml</file>
-        <file alias="Copter.OfflineEditing.params">Copter3.4.OfflineEditing.params</file>
+        <file alias="Copter.OfflineEditing.params">Copter3.5.OfflineEditing.params</file>
         <file alias="Plane.OfflineEditing.params">Plane3.7.OfflineEditing.params</file>
     </qresource>
 </RCC>

src/comm/MockLink.cc

@@ -872,7 +872,7 @@ void MockLink::_respondWithAutopilotVersion(void)
     uint32_t flightVersion = 0;
     if (_firmwareType == MAV_AUTOPILOT_ARDUPILOTMEGA) {
         flightVersion |= 3 << (8*3);
-        flightVersion |= 3 << (8*2);
+        flightVersion |= 5 << (8*2);
         flightVersion |= 0 << (8*1);
         flightVersion |= FIRMWARE_VERSION_TYPE_DEV << (8*0);
     } else if (_firmwareType == MAV_AUTOPILOT_PX4) {