title: CameraBridgeViewBase doesnt exist in opencv package
body: <p>my activity implements CameraBridgeViewBase.CvCameraViewListener2, but eclips doesnt recognize CameraBridgeViewBase:</p>
  
  <p>public class CallActivity extends Activity implements 
  CameraBridgeViewBase.CvCameraViewListener2</p>
  
  <p>is CameraBridgeViewBase class suppose to be included in the openCV package?
  because it doesn't exist in my package.. do i have to write it? or try to download it?
  thanks a lot!</p>