title: jQuery tablesorter is not sorting number correctly
body: <p>I've been trying for days now to get jQuery tablesorter correctly sort numbers in my table column.</p>
  
  <p>I am using the current latest versions of both scripts.</p>
  
  <p>The table is rendered fine, but sorting the numbers is not working correctly.</p>
  
  <p>When I sort a number column it gives me the following results:</p>
  
  <p>8
  7
  4
  32
  31
  3
  etc..</p>
  
  <p>where you would expect:
  32
  31
  8
  etc...</p>
  
  <p>I read some comments on adding extra javascript code but I can't find any good javascript examples.</p>
  
  <p>The jQuery I'm using now is as follows:</p>
  
  <pre><code>$(document).ready(function()
      {
        $("#table1")
         .tablesorter(
            {
              sortList: [[0,0]],
              widthFixed: true,
              widgets: ['zebra']
            } )
      }
  );
  </code></pre>
  
  <p>Here is my HTML:</p>
  
  <pre><code>&lt;table id="table1" class=tablesorter&gt;
      &lt;thead&gt;
          &lt;tr&gt;
              &lt;th width=65&gt;Name&lt;/th&gt;
              &lt;th width=40&gt;Count&lt;/th&gt;
          &lt;/tr&gt;
       &lt;/thead&gt;
       &lt;tbody&gt;
           &lt;tr&gt;&lt;td&gt;Name_1&lt;/td&gt;&lt;td&gt;32&lt;/td&gt;&lt;/tr&gt;
           &lt;tr&gt;&lt;td&gt;Name_2&lt;/td&gt;&lt;td&gt;12&lt;/td&gt;&lt;/tr&gt;
           &lt;tr&gt;&lt;td&gt;Name_3&lt;/td&gt;&lt;td&gt;11&lt;/td&gt;&lt;/tr&gt;
           &lt;tr&gt;&lt;td&gt;name_4&lt;/td&gt;&lt;td&gt;14&lt;/td&gt;&lt;/tr&gt;
           &lt;tr&gt;&lt;td&gt;Name_5&lt;/td&gt;&lt;td&gt;7&lt;/td&gt;&lt;/tr&gt;
           &lt;tr&gt;&lt;td&gt;Name_6&lt;/td&gt;&lt;td&gt;3&lt;/td&gt;&lt;/tr&gt;
           &lt;tr&gt;&lt;td&gt;Name_7&lt;/td&gt;&lt;td&gt;32&lt;/td&gt;&lt;/tr&gt;
           &lt;tr&gt;&lt;td&gt;Name_8&lt;/td&gt;&lt;td&gt;31&lt;/td&gt;&lt;/tr&gt;
           &lt;tr&gt;&lt;td&gt;Name_9&lt;/td&gt;&lt;td&gt;35&lt;/td&gt;&lt;/tr&gt;
        &lt;/tbody&gt;
  &lt;/table&gt;
  </code></pre>