in LoadPerspective, if pane wasn't found, just skip it instead of bailing out

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@49103 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/aui/framemanager.cpp

@@ -1446,12 +1446,11 @@ bool wxAuiManager::LoadPerspective(const wxString& layout, bool update)
         if (!p.IsOk())
         {
             // the pane window couldn't be found
-            // in the existing layout
-            return false;
+            // in the existing layout -- skip it
+            continue;
         }
 
         p.SafeSet(pane);
-
     }
 
     if (update)