1. wxFrame restores focus better

2. fixed _2_ memory leaks in wxGrid::IsCellEditControlShown
3. modified wxGridCellEditor::StartingKey() to accept several more keys
4. fixed (but why is this needed?) bug in wxCalCtrl appearance
5. made it possible to close the log dialog with <Esc> under MSW


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7585 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/frame.h

@@ -149,6 +149,9 @@ protected:
     static bool           m_useNativeStatusBar;
 #endif // wxUSE_STATUSBAR
 
+    // the last focused child: we restore focus to it on activation
+    wxWindow             *m_winLastFocused;
+
     // Data to save/restore when calling ShowFullScreen
     long                  m_fsStyle; // Passed to ShowFullScreen
     wxRect                m_fsOldSize;