title: ExtJS Gridpanel Column width + forcefit
body: <p>I have a gridpanel that i would like to have 2 columns in. I want the first column to have a width of 100 and the second column to fill the remaining width in the gridpanel.</p>
  
  <p>Any ideas?</p>
  
  <p><strong>EDIT</strong></p>
  
  <pre><code>sensorListPanel = new xg.GridPanel({
      id: 'sensorListPanel',
      region: 'west',
      width: 415,
      viewConfig: {
          forceFit:true,
          //fitcontainer:true
      },
      store: sensorStore,
      cm: new xg.ColumnModel({
          defaults: {
              width: 120,
              sortable: true
          },
          columns: [
              smSensors,
              {id:'Station',header: "Station", width: 95, dataIndex: 'gml_id'},
              {id:'Description', header: "Description", dataIndex: 'description'}
          ]
      }),
      sm: smSensors,
      columnLines: true,
      title:'Sensors',
  });
  </code></pre>