4 new Flex 4 samples added

Holly just added four new Flex 4 samples to Tour de Flex:

• Flex 4 Beta | Coding Techniques | States/Transitions
  
• Flex 4 Beta | UI Controls | Buttons | PopupAnchor
  
• Flex 4 Beta | UI Controls | Other Controls |Slider
  
• Flex 4 Beta | UI Controls | Other Controls |ScrollBar
  

More coming soon!