Automatic merge of T1.6-141-g23fd156fa and 13 pull requests

- Pull request #1082 at 8538170: Allow variable water level in glass gauge
- Pull request #1156 at f46d5f2: Fix incorrectly disabled options in train operations window
- Pull request #1091 at 492795a: Automatic speed control
- Pull request #1122 at 73c47b4: Wagon Size and Centering Controls
- Pull request #1124 at e241a0d: Built-in PBL2 brake controller
- Pull request #1128 at d116396: Particle Emitter Overhaul
- Pull request #1157 at 39cd994: Dynamic brake authorization by TCS
- Pull request #1163 at 2f9e292: Fix: Crash when using Camera 8 and F9.
- Pull request #1164 at 1ad9889: Fix: F9 crashes with a front coupled single steam locomotive by Csantucci.
- Pull request #1166 at 51e7f7a: Simplify loading of internal and game textures
- Pull request #1167 at 115325f: Fix: RunActivity slow to terminate because of long sleep in Host Process
- Pull request #1168 at 6e2942f: Fix exception when exiting with MapForm or SoundDebugForm open.
- Pull request #1169 at 8fe03b1: Better Handling of Wagons with Invalid Bogie Configuration

Author: openrails-bot

Source/Orts.Simulation/Simulation/RollingStocks/TrainCar.cs

@@ -3044,6 +3044,7 @@ public void ComputePosition(Traveller traveler, bool backToFront, float elapsedT
                 // Train car lacks sufficient parts to locate using linear regression
                 p0.Dir = Parts[1].Dir;
                 p0.Pos = Parts[1].Pos;
+                p0.Roll = Parts[1].Roll;
             }
             else
             {