title: Update contents of column header in slickgrid
body: <p>I am using slickgrid in an angular application which supports multiple languages. How can I update the column headers when the selected language is changed.
  My column definition looks like this and what I basically want is the grid to call myI18N again to update the column title.</p>
  
  <pre><code>{ id: "myid", name: myI18nFn('idKey'), field: "myid", width: 100}
  </code></pre>
  
  <p>I have an angular event that detects changes and I have access to the grid object there, I am just not sure on what I need to do make it update the column header</p>