title: Backbone-UI, TableView, rendering columns
body: <p>I'm trying to render a table view with four columns, 'name', 'birthday', 'gender', 'married', but </p>
  
  <p>a) they columns aren't showing up at all
  b) I'm not even sure if I am passing them correctly, because when I console.log table.options the columns property is rendered as "empty":</p>
  
  <pre><code>Object {columns: Array[0], emptyContent: "no entries", onItemClick: function, sortable: false, onSort: null}
  </code></pre>
  
  <p>I've tried this:</p>
  
  <pre><code>var table = new Backbone.UI.TableView({
      model: people,
      columns: [
          { title: "Name", content: 'name' },
          { title: "Gender", content: "gender" } },
          { title: "Birthday", content: "birthday" } },
          { title: "Married", content: "married" }  }
      ]
  });
  </code></pre>
  
  <p>And this:</p>
  
  <pre><code>var table = new Backbone.UI.TableView({
      model: people,
      options: {
          columns: [
          { title: "Name", content: 'name' },
          { title: "Gender", content: "gender" },
          { title: "Birthday", content: "birthday" },
          { title: "Married", content: "married" }
          ]
      }
  });
  </code></pre>