title: getSymbols issues with the date R
body: <p>I am trying to get the stock price of ATT since 1984. I wrote this code:</p>
  
  <pre><code>from.dat &lt;- as.Date("07/19/84", format="%m/%d/%y")
  to.dat &lt;- as.Date("11/07/13", format="%m/%d/%y")
  getSymbols("ATT", from = from.dat, to =   to.dat)                    
  </code></pre>
  
  <p>However, the earliest data I could get is from Jun of 2008. Could you please help me?</p>