Merge branch 'Stable_V3.5' of https://github.com/mavlink/qgroundcontrol into StableMerge

.appveyor.yml

@@ -61,7 +61,7 @@ for:
 -
   branches:
     only:
-      - Stable_V3.4
+      - Stable_V3.5
   artifacts:
     - path: QGroundControl-installer.exe
       name: qgcinstaller

src/comm/LinkManager.cc

@@ -994,7 +994,7 @@ void LinkManager::startAutoConnectedLinks(void)
 int LinkManager::_reserveMavlinkChannel(void)
 {
     // Find a mavlink channel to use for this link, Channel 0 is reserved for internal use.
-    for (uint8_t mavlinkChannel = 1; mavlinkChannel < 32; mavlinkChannel++) {
+    for (uint8_t mavlinkChannel = 1; mavlinkChannel < MAVLINK_COMM_NUM_BUFFERS; mavlinkChannel++) {
         if (!(_mavlinkChannelsUsedBitMask & 1 << mavlinkChannel)) {
             mavlink_reset_channel_status(mavlinkChannel);
             // Start the channel on Mav 1 protocol