Device visualiser - (probably) Fixed a NaN crash

General UI - Apply change in default render scale everywhere
Plugin settings - Added restart later option when disabling device providers
Plugin settings - Added support for disabling plugins that failed to load

src/Artemis.UI.Shared/Controls/DeviceVisualizer.cs

@@ -142,15 +142,14 @@ namespace Artemis.UI.Shared
         private static Size ResizeKeepAspect(Size src, double maxWidth, double maxHeight)
         {
             double scale;
-            // ??
             if (double.IsPositiveInfinity(maxWidth) && !double.IsPositiveInfinity(maxHeight))
                 scale = maxHeight / src.Height;
             else if (!double.IsPositiveInfinity(maxWidth) && double.IsPositiveInfinity(maxHeight))
                 scale = maxWidth / src.Width;
             else if (double.IsPositiveInfinity(maxWidth) && double.IsPositiveInfinity(maxHeight))
                 return src;
-
-            scale = Math.Min(maxWidth / src.Width, maxHeight / src.Height);
+            else
+                scale = Math.Min(maxWidth / src.Width, maxHeight / src.Height);
 
             return new Size(src.Width * scale, src.Height * scale);
         }

src/Artemis.UI.Shared/Services/Interfaces/IDialogService.cs

@@ -6,6 +6,9 @@ using Ninject.Parameters;
 
 namespace Artemis.UI.Shared.Services
 {
+    /// <summary>
+    ///     Provides different ways of showing confirmation dialogs and custom dialogs
+    /// </summary>
     public interface IDialogService : IArtemisSharedUIService
     {
         /// <summary>