title: extjs automatic date parsing in store object
body: <p>Using extjs 3.4. I have a json object that is parsed in the store. </p>
  
  <pre><code>"date_end":{"date":31,"day":5,"hours":0,"minutes":0,"month":11,"seconds":0,"time":253402210800000,"timezoneOffset":-60,"year":8099}
  </code></pre>
  
  <p>This is my store fields:</p>
  
  <pre><code>fields: [{name:'date_end.time',type:"date",dateFormat:"time"}]
  </code></pre>
  
  <p>It works, but with this solution I must specify the <code>type</code> and <code>dateFormat</code> configurations. </p>
  
  <p>Is possbible to use an automatic configuration? something like this:</p>
  
  <pre><code>fields: [{name:'date_end.time'}]
  </code></pre>
  
  <p>or better:</p>
  
  <pre><code>fields: [{name:'date_end'}]
  </code></pre>
  
  <p>So, is possible to use minum configuration options? </p>