Create tag WX_2_9_4

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/tags/WX_2_9_4@71954 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Create tag WX_2_9_4

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/tags/WX_2_9_4@71983 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Create tag WX_2_9_4

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/tags/WX_2_9_4@71986 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
- supports only vc9 on msw for now
* wxObject now inherits wxTrackable (to support weak reference of script)
* wxEventHandler: removed unnecessary wxTrackable (already from wxObject)
* wxDataViewModelNotifier : now supports weak ref
* wxHeaderColumn : now supports weak ref
* wxXmlResource : now supports user stream
* added method to RemoveHandler previously added
* added 'All images files' filter to image property
* changed wxHTML's default encoding to UTF-8 from iso-8859-1
* wxPropertyGrid behaves more naturally when focus on itself handling mouse click
* [Fixed] Can't click expander column when its index != 0
* [Fixed] column width got wrong when its splitter double clicked
* wxRibbonArtProvider now supports weak ref
* Exposed item class to bind script easily
* simplified building configurations on msvc9
* [fixed] wx_vc9_wxscintilla project warnings
* [added] wxShapeFramework
- [added] samples of wxShapeFramework
* [added] revival of wxFoldBar
* [added] xs (wxXmlSerializer) for wxShapeFramework
* Now builds successfully
* [added] tweaked and added setup.h as preset
* [added] ignore vc temp & out stuffs