Page.title() may return labeled links like [[link|label]]

withNamespaces parameter is also availlable with asLink=True.
This means the link is labeled with it's _link.title:
[[link|label]]
[[link#section|label]]
[[site:link|label]]
except left and right side is the same e.g. for article namespace

Change-Id: Ic5c19d7c3f504c634ad63ff564477e4e54e532bd