title: openCV 3.0.0 cv::vector missing
body: <p>I'm upgrading from <code>opencv 2.4.11</code> to <code>3.0.0</code> I have used <code>cv::vector</code> in my code 
  <code>&lt;br&gt;</code> but now I get the error
  vector in not a member of <em>'cv'</em></p>
  
  <p>I will start using <code>std::vector</code> instead <code>&lt;br&gt;</code>
  however I can't find anywhere was it removed or just moved to another header file?</p>