For mobile, save log downloads next to where everything else is saved instead...

For mobile, save log downloads next to where everything else is saved instead of straight into the home directory (which is anybody's guess when it comes to mobile platforms).

src/AnalyzeView/LogDownloadController.cc

@@ -21,6 +21,7 @@
 #include "QGCMapEngine.h"
 #include "ParameterManager.h"
 #include "Vehicle.h"
+#include "SettingsManager.h"
 
 #include <QDebug>
 #include <QSettings>
@@ -511,7 +512,7 @@ LogDownloadController::download(QString path)
     QString dir = path;
 #if defined(__mobile__)
     if(dir.isEmpty()) {
-        dir = QDir::homePath();
+        dir = qgcApp()->toolbox()->settingsManager()->appSettings()->logSavePath();
     }
 #else
     if(dir.isEmpty()) {