Merge branch 'master' into fixes/TypefaceLeak

src/Avalonia.Controls/Primitives/ScrollBar.cs

@@ -141,7 +141,7 @@ namespace Avalonia.Controls.Primitives
                 _ => throw new InvalidOperationException("Invalid value for ScrollBar.Visibility.")
             };
 
-            SetValue(IsVisibleProperty, isVisible, BindingPriority.Style);
+            SetValue(IsVisibleProperty, isVisible);
         }
 
         protected override void OnKeyDown(KeyEventArgs e)

src/Avalonia.Visuals/Visual.cs

@@ -455,7 +455,7 @@ namespace Avalonia
         }
 
         /// <summary>
-        /// Called when the control is added to a visual tree.
+        /// Called when the control is added to a rooted visual tree.
         /// </summary>
         /// <param name="e">The event args.</param>
         protected virtual void OnAttachedToVisualTree(VisualTreeAttachmentEventArgs e)
@@ -463,7 +463,7 @@ namespace Avalonia
         }
 
         /// <summary>
-        /// Called when the control is removed from a visual tree.
+        /// Called when the control is removed from a rooted visual tree.
         /// </summary>
         /// <param name="e">The event args.</param>
         protected virtual void OnDetachedFromVisualTree(VisualTreeAttachmentEventArgs e)