Feature update

Update on GUI:

• jump easily on your fingers. No need to go top anymore.
• Shift the color select to flash instead of YUI ColorPicker.
• Use HBoxPane to avoid losing focus.
• No flick during the switch mode.
  
• Allowed changing color after your draw.
  

Back end:

• Better performance with draw
• Clear last draw used flash internal fucntion (as3)
• as3 transform has been used to change color