Unify QBluetoothSoket, QBluetoothServer and QBluetoothServiceInfo protocol enum

Change-Id: I6e66196a599e2cceabc7d93d728ba97361d8999f
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
Refactor QDeclarativeBluetoothSocket

Change-Id: I7bd36d4b05a28788720b3301eed310c4f4b2d910
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>