Streams 139

STREAMS-139 | Updated the buildProvider method in the SyndEntry Serializer to ensure that we use a valid URI for the link attribute
Add some comments around this logic.  As it is written it looks like:

"Check that the URI is valid (starts with http or www) if not and the link is also invalid, then go ahead and use the URI anyway" 

Why would that be the desired behavior?  How is that functionally different than "If the link is invalid, use the URI"