- Fixed TfrmToolWindow.FormDeactivate to check CanClose first

- Fixed TfrmDrawSettings and TfrmHueSettings to be shown non-modal (fixes #49)

Client/UfrmMain.pas

@@ -1084,7 +1084,7 @@ begin
   acDraw.Checked := True;
   tbDrawTile.Down := True;
   mnuDraw.Checked := True;
-  frmDrawSettings.ShowModal;
+  frmDrawSettings.Show;
   ProcessToolState;
 end;