title: Split a string cell array based upon a delimiter
body: <p>I have a string cellarray something like this</p>
  
  <pre><code>12:34
  13:45
  12:45
  </code></pre>
  
  <p>Now I want to split this cell array into two with values separated by the delimiter. Something like this</p>
  
  <p>The first one</p>
  
  <pre><code>12
  13
  12
  </code></pre>
  
  <p>and the second one</p>
  
  <pre><code>34
  45
  45
  </code></pre>
  
  <p>How can I do this in matlab?</p>