Automatic merge of T1.6-rc4-34-g041d7ab18 and 17 pull requests

- Pull request #1086 at e10390b: Add Settings Exporter tool (copy settings to INI, etc)
- Pull request #1091 at aa72c13: Automatic speed control
- Pull request #1104 at 86d38a2: Handle simple adhesion within the axle module
- Pull request #1110 at 387388e: Fix Activity Runner persists after loading exception
- Pull request #1115 at 270f22f: Do not activate ETS switch if no suitable cars are attached
- Pull request #1120 at ba3c47f: Automatically Calculate Friction Values if Missing
- Pull request #1121 at 91d2d26: Manually Override Articulation
- Pull request #1130 at 8ae6bb7: Fix F9 points to an incorrect car ID.
- Pull request #1132 at 934d29e: Fixes For Correct Questionable Braking Parameters
- Pull request #1133 at 8dc00d5: Minor Fix for Brake Pipe Charging
- Pull request #1136 at 6f1b82f: Fix Curve Resistance Calculation
- Pull request #1137 at c2c9e2a: Apply brakes at startup on minimal reduction
- Pull request #1139 at b47224d: Fix for bug https://bugs.launchpad.net/or/+bug/2117357. 
- Pull request #1082 at 5845a1a: Allow variable water level in glass gauge
- Pull request #1081 at 689494b: Brake cuts power unification
- Pull request #1124 at fab5457: Built-in PBL2 brake controller
- Pull request #1128 at 58de4c3: Particle Emitter Overhaul

Author: openrails-bot

Source/RunActivity/Viewer3D/Cameras.cs

@@ -1089,10 +1089,14 @@ protected override void OnActivate(bool sameCamera)
                 oldCarPosition = oldCarPosition == 0 && carPosition == 0 ? -1 : oldCarPosition;
             }
 
-            if (attachedCar != null && !isVisibleTrainCarViewerOrWebpage && !Front)
-            {// Reset behaviour of camera 3, after closing F9-window and F9-web.
+            if (attachedCar != null && !isVisibleTrainCarViewerOrWebpage)
+            {   // Reset behaviour of camera 2 and camera 3, after closing F9-window and F9-web.
                 var attachedCarPosition = attachedCar.Train.Cars.TakeWhile(x => x.CarID != attachedCar.CarID).Count();
-                if (attachedCarPosition == carPosition)
+                if (Front && attachedCarPosition == carPosition)
+                {
+                    attachedCar = trainCars.First();
+                }
+                if (!Front && attachedCarPosition == carPosition)
                 {
                     attachedCar = trainCars.Last();
                 }