title: CellTable - How can I do rowspan and colspan
body: <p>I have a CellTable and I wanna do a rowspan and colspan, but CellTable don't give methods for this. </p>
  
  <p>In my ui.xml I have my CellTable.</p>
  
  <pre><code>&lt;b:CellTable ui:field="groupViewTable&gt;&lt;/b:CellTable&gt;
  </code></pre>
  
  <p>Java Code Celltable:</p>
  
  <pre><code>public CellTable&lt;String&gt; createGroupViewTable() {
      groupViewTable = new CellTable&lt;String&gt;();
  
      groupViewTable.setLoadingIndicator(null);
  
      List&lt;String&gt; listObjects = new ArrayList&lt;String&gt;();
      listObjects.add("Revenue");
      listObjects.add("Teste");
  
      TextColumn conceptColumn = new TextColumn() {
          @Override
          public String getValue(Object object) {
  
              return "Concept";
          }
      };
      groupViewTable.addColumn(conceptColumn, "Concept");
  
      TextColumn proposalColumn = new TextColumn() {
          @Override
          public String getValue(Object object) {
              return "Proposal";
          }
      };
      groupViewTable.addColumn(conceptColumn, "Proposal");
  
      TextColumn eurColumn = new TextColumn() {
          @Override
          public String getValue(Object object) {
              return "EUR";
          }
      };
      groupViewTable.addColumn(conceptColumn, "EUR");
  
      TextColumn hoursColumn = new TextColumn() {
          @Override
          public String getValue(Object object) {
              return "Hours";
          }
      };
      groupViewTable.addColumn(conceptColumn, "Hours");
  
      TextColumn lastEurColumn = new TextColumn() {
          @Override
          public String getValue(Object object) {
              return "EUR";
          }
      };
      groupViewTable.addColumn(lastEurColumn, "EUR");
  
      groupViewTable.setRowCount(listObjects.size(), true);
      groupViewTable.setRowData(0, listObjects);
  
      return groupViewTable;
  }
  </code></pre>
  
  <p>This CellTable is a just test. Its show a header with only one row, but I would like some similar this: <a href="http://www.w3.org/TR/html401/images/mergedcells.gif" rel="nofollow">http://www.w3.org/TR/html401/images/mergedcells.gif</a></p>
  
  <p>How can I do this? Thanks for attention.</p>