WaitForDraw should return on Draw or Close

- Revise default wait value due to observed hangs
- Catch AppDomainUnloaded exception and exit background thread/loop

ApplicationView/ApplicationController.cs

@@ -241,6 +241,10 @@ namespace MatterHackers.MatterControl
 						thumbGenResetEvent.WaitOne();
 					}
 				}
+				catch (AppDomainUnloadedException)
+				{
+					return;
+				}
 				catch (ThreadAbortException)
 				{
 					return;

Submodules/agg-sharp

@@ -1 +1 @@
-Subproject commit be5a14436e63982ec3eaee7d0fee215fbf0e1747
+Subproject commit b91a4c8f8e0855fe3b647d31d5cf6cf251e92a91

Tests/MatterControl.Tests/MatterControl/MatterControlUtilities.cs

@@ -436,7 +436,7 @@ namespace MatterHackers.MatterControl.Tests.Automation
 		/// </summary>
 		/// <param name="testRunner">The TestRunner to interact with</param>
 		/// <param name="textValue">The text to type</param>
-		public static void CompleteDialog(this AutomationRunner testRunner, string textValue, double secondsToWait = 1)
+		public static void CompleteDialog(this AutomationRunner testRunner, string textValue, double secondsToWait = 2)
 		{
 			// AutomationDialog requires no delay
 			if (AggContext.FileDialogs is AutomationDialogProvider)