Automatic merge of T1.6-186-g21d9ada29 and 9 pull requests

- Pull request #1082 at b191a54: Allow variable water level in glass gauge
- Pull request #1057 at 85bde8e: Switchable brake system
- Pull request #1122 at 73c47b4: Wagon Size and Centering Controls
- Pull request #1124 at e241a0d: Built-in PBL2 brake controller
- Pull request #1128 at b6c197f: Particle Emitter Overhaul
- Pull request #1169 at 906f204: Revise TrainCar.SetUpWheels to Better Handle Unusual Rolling Stock
- Pull request #1175 at d28315e: Make Data Logger interval configurable
- Pull request #1176 at 4cd961b: Remove Implicit Requirement for Engine Name to Come After "Engine ("
- Pull request #1178 at 015769e: Fix Diesel RPM Rate of Change

Author: openrails-bot

Source/Orts.Simulation/Simulation/RollingStocks/MSTSSteamLocomotive.cs

@@ -2746,7 +2746,7 @@ private float CalculateLiveSteamInjectorDefaultSize( int injectorNumber, float F
                         Trace.TraceInformation("Calculated Live Steam Injector{0}NozzleSizeMM as {1} mm to meet water delivery requirements", injectorNumber, ActualInjectorNozzleSizeMM);
                     return ActualInjectorNozzleSizeMM;             
                 }
-                else if (i == 20)
+                else if (i == 19)
                 {
                     ActualInjectorNozzleSizeMM = 19; // set to maximum size
                     if (Simulator.Settings.VerboseConfigurationMessages)
@@ -2776,7 +2776,7 @@ private float CalculateExhaustSteamInjectorDefaultSize(int injectorNumber, float
                         Trace.TraceInformation("Calculated Exhaust Steam Injector{0}NozzleSizeMM as {1} mm to meet water delivery requirements", injectorNumber, ActualInjectorNozzleSizeMM);
                     return ActualInjectorNozzleSizeMM;
                 }
-                else if (i == 20)
+                else if (i == 19)
                 {
                     ActualInjectorNozzleSizeMM = 19; // set to maximum size
                     if (Simulator.Settings.VerboseConfigurationMessages)
@@ -7388,7 +7388,7 @@ private void UpdateWaterGauge()
 
             GradientBoilerLevelFraction = MathHelper.Clamp(GradientBoilerLevelFraction, 0.0f, 1.0f);
 
-            CurrentWaterGaugeFraction = ((BoilerWaterFractionAbs - waterVariationLevelM / BoilerDiameterM) - WaterGlassMinLevel) / (WaterGlassMaxLevel - WaterGlassMinLevel); // Calculate water glass grade fraction
+            CurrentWaterGaugeFraction = ((BoilerWaterFractionAbs - waterVariationLevelM / BoilerDiameterM) - WaterGlassMinLevel) / (WaterGlassMaxLevel - WaterGlassMinLevel); // Calculate water glass grade fraction inverse for use in determining water injector operation.
 
             CurrentWaterGaugeFraction = MathHelper.Clamp(CurrentWaterGaugeFraction, 0.0f, 1.0f);