title: List issue creation and resolved time
body: <p>I am trying to find out how I can list issues with their creation and resolved time. The changelog as shown below does not list the creation time for the issue and resolution time. How can i retrieve that data?</p>
  
  <pre><code> #!/usr/bin/python
   import jira.client
   from jira.client import JIRA
  
  jira = JIRA(options, basic_auth=(USERNAME, PASSWORD))
  
  issue = jira.issue('FOO-100', expand='changelog')
  changelog = issue.changelog
  
  for history in changelog.histories:
      for item in history.items:
          if item.field == 'status':
              print 'Date:' + history.created + ' From:' + item.fromString + ' To:' + item.toString
  </code></pre>
  
  <p>Output:</p>
  
  <pre><code>Date:2012-10-23T09:49:41.197+0100 From:Open To:Queued
  Date:2012-10-23T09:49:43.838+0100 From:Queued To:In Progress
  Date:2012-10-23T09:49:45.390+0100 From:In Progress To:Blocked
  Date:2012-10-29T16:06:36.733+0000 From:Blocked To:In Progress
  Date:2012-10-31T16:47:40.191+0000 From:In Progress To:Peer Review
  Date:2012-10-31T16:47:41.783+0000 From:Peer Review To:Customer Approval
  </code></pre>