journal: don't include email in author name - avoid double data

In journal RSS feed, report author as:
<author>name@example.com (User Name)</author>
instead of double email due to:
<author>name@example.com (User Name &lt;name@example.com&gt;)</author>

In the journal ATOM feed, report author as:
<author>
<name>user Name</name>
<email>test_admin@example.com</email>
</author>
instead of using double email due to:
<name>name@example.com (User Name &lt;name@example.com&gt;)</name>