1. big wxScrollBar optimization: Refresh() doesn't refresh them any more

2. many fixes to refresh scrollbars when needed (as this is not done all
   the time now)
3. wxStdButtonInputHandler bug with uninit m_hasMouse fixing bug with
   moving mouse with pressed left button into button
4. wxRadioBox::SetSelection() and wxRadioButton::SetValue() clear the
   values of the other buttons in the same radio group
5. wxTextCtrl::RefreshPixelRange() calculates the end of line correctly
6. tons of wxListBox fixes
7. removed confusing "Create" button from the lbox sample, listbox is now
   recreated on the fly


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/wxUNIVERSAL@8615 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/univ/button.cpp

@@ -242,6 +242,7 @@ wxStdButtonInputHandler::wxStdButtonInputHandler(wxInputHandler *handler)
                        : wxStdInputHandler(handler)
 {
     m_winCapture = NULL;
+    m_winHasMouse = FALSE;
 }
 
 bool wxStdButtonInputHandler::HandleKey(wxControl *control,