The pages from cnet.com are partially missing byline information in Reader View

[avaida]

Affected:

• 38.0b5-build1
• 39.0a2 (2015-04-16)
• 40.0a1 (2015-04-16)

Sample pages:

• http://www.cnet.com/news/the-inside-story-of-the-multibillion-dollar-quest-to-make-faster-cheaper-gadgets/
• http://www.cnet.com/products/sony-mdr-1a/

Screenshot:

[leplatrem]

This is very similar to #153 and #45

There are several author tags in this page, and once we find one, we ignore the next ones.
https://github.com/mozilla/readability/blob/master/Readability.js#L537

<span class="authors">
<span class="author">By: <a href="/profiles/dcarnoy/" rel="author"><span>David Carnoy</span></a></span>
<span class="author"><span class="separator">,</span>
<a href="/profiles/theaudiophiliac/" rel="author"><span>Steve Guttenberg</span></a></span>
</span>