title: shiny R renderTable right alignment
body: <p>I have a shiny R application in which I'm using "renderTable" function to render the table that is dynamically created.
  The table may have 3 character columns and 4 numeric columns in one case and has 2 character columns and 2 numeric columns in another case.
  The renderTable code from ui.R is : </p>
  
  <pre><code>     output$table1 &lt;- renderTable({
                  d1&lt;-data()
               print(format(d1, big.mark=",", scientific=FALSE,justify="right", nsmall=0))
  
       })
  </code></pre>
  
  <p>This is working for all format options specified except for justify. All numeric columns are left justified in the output. </p>
  
  <p>Can anyone shed some light on why?</p>