Mark additional tests as unconnected to a Site

* Namespace tests do not need a site.
* One of the textlib tests does not need a site.
* One of the wikidataquery tests talks to wikidataquery
  but does not need a site.

Change-Id: Iffacec799d421a678c45ea82e1e32abf400e34fd
Merge "Mark additional tests as unconnected to a Site"