imported Zxing lib, not sure if this is a correct way = =.
Import zxing src
Lots of changes =p

>Protocol - use float(%) to send and receive coordinate msg now
+ Select the server type (JFrame)

+ New user interface for android
+ Connection setup dialog
> extract the android sensor stuff to a class
bug fix when clearing old point
add mac address parameter to bluetooth client
Bluetooth server rework
bluetooth client milestone
Merge pull request #2 from smallcampus/Bluetooth

The First Milestone!