Add Bluetooth class
Add bluetooth members and thier getter
Implement connectSocket method
Implement closeSocket method
Implement Constructor of 'Bluetooth' Class
Implement write() method
Implement setBluetoothDevice method
Add NullPointerException process for setBluetoothDevice method
Add permission of 'BLUETOOTH' and 'BLUETOOTH ADMIN'
Fix around of exceptions
Replace static createRfcommSocket method with dynamic it
Change Log.d() method's place
Merge pull request #2 from iwqbb/bluetooth_base

Bluetooth base