Article URL is relative to Reader installation

[naku]

From Martin Fowler's bliki:

http://martinfowler.com/feed.atom Value: /articles/asyncJS.html Expected : http://martinfowler.com/articles/asyncJS.html

<feed xmlns="http://www.w3.org/2005/Atom">
<link href="http://martinfowler.com/feed.atom" rel="self"/>
<link href="http://martinfowler.com"/>
<id>http://martinfowler.com/feed.atom</id>
<title>Martin Fowler</title>
<subtitle>
Master feed of news and updates from martinfowler.com
</subtitle>
<author>
<name>Martin Fowler</name>
<email>[email protected]</email>
<uri>http://martinfowler.com</uri>
</author>
<updated>2013-09-10T09:46:00-04:00</updated>
<entry>
<title>Testing Asynchronous Javascript</title>
<link href="/articles/asyncJS.html"/>
<updated>2013-09-03T08:41:00-04:00</updated>
<id>
tag:martinfowler.com,2013-09-03:Testing-Asynchronous-Javascript
</id>
<category term=""/>
<content type="html">
<p>Testing asynchronous behavior is often complicated, and javascript web applications introduce a lot of asynchrony. <a href='http://blog.thepete.net/'>Pete Hodgson</a> explains that you don&#8217;t have to tie yourself in knots as most javascript is async-compatible rather than inherently async.</p>
</content>
</entry>
</feed>

[jendib]

Also for http://www.pbs.org/wgbh/nova/rss/nova.xml

[naku]

Relates to #124