HexEditor: Replace more control characters with dots.

src/AddIns/DisplayBindings/HexEditor/Project/Src/Editor.cs

@@ -1076,7 +1076,7 @@ namespace HexEditor
 		string GetText(byte[] bytes)
 		{
 			for (int i = 0; i < bytes.Length; i++) {
-				if (bytes[i] < 32) bytes[i] = 46;
+				if (bytes[i] < 32 || (bytes[i] >= 0x80 && bytes[i] < 0xA0)) bytes[i] = 46;
 			}
 
 			string text = this.Encoding.GetString(bytes);

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Utils/Rope.cs

@@ -786,7 +786,7 @@ namespace ICSharpCode.AvalonEdit.Utils
 		public T[] ToArray()
 		{
 			T[] arr = new T[this.Length];
-			CopyTo(arr, 0);
+			this.root.CopyTo(0, arr, 0, arr.Length);
 			return arr;
 		}