title: nd4j arrays return incorrect rank
body: <p>When I create an nd array from a 1d <code>float[]</code> it has rank 2.</p>
  
  <pre><code>INDArray array = Nd4j.create(new float[] {0,1,2,3,4,5});
  int rank = array.rank(); // Is 2!
  </code></pre>
  
  <p>From the documentation this is supposed to be rank 1: <a href="http://nd4j.org/userguide#createfromjava" rel="nofollow noreferrer">http://nd4j.org/userguide#createfromjava</a></p>
  
  <p>Any ideas how can I create a rank 1 INDArray?</p>