Automatic merge of T1.5.1-515-g868d5abc9 and 11 pull requests

- Pull request #757 at 98dd1a7: Unify RailDriver code implementations
- Pull request #799 at dc03850: Consolidated wind simulation
- Pull request #821 at cc3af66: Adds suppression of safety valves
- Pull request #831 at 61bbf43: poor mans switch panel on tablet
- Pull request #839 at d00beb9: First phase of https://blueprints.launchpad.net/or/+spec/additional-cruise-control-parameters
- Pull request #841 at 410a585: https://blueprints.launchpad.net/or/+spec/animating-trainset-windows
- Pull request #844 at 3f42c30: Animate axles separately
- Pull request #846 at eae6246: Initialize cars before restore
- Pull request #851 at d3e8c3e: New Triple Valve Features
- Pull request #853 at 8357922: Notify out of focus
- Pull request #854 at 027fac8: fix: Updating manual to match PR 647

Source/ORTS.Settings/UserSettings.cs

@@ -275,7 +275,7 @@ public enum DirectXFeature
         public bool FullScreen { get; set; }
         [Default("1024x768")]
         public string WindowSize { get; set; }
-        [Default(false)]
+        [Default(true)]
         public bool OutOfFocus { get; set; }
         [Default(false)]
         public bool WindowGlass { get; set; }