RestJiraDownloader doesn't process issueType

The RestJiraDownloader receives as one of the many fields, the issuetype, but ignores it. So, although the docs suggest you can have the "Type" field as a display option, and a sort option (see: http://maven.apache.org/plugins/maven-changes-plugin/examples/customizing-jira-report.html scroll to selecting columns), this in fact fails for 2.9 version.