[test] Rename BaseQuerierTC._access to BaseQuerierTC.admin_access
so it's consistent with CubicWebTC and avoid access to a protected attribute
which has been exposed by the removal of the 'session' property a few csets
earlier.
.. winclude:: search_sample_queries
You can as well type complex queries using the RQL_ query language,
used every where to build dynamic pages of this site.
You can use one of the following prefixes to specify which kind of search you
want:
* `rql` : RQL query
* `text` : full text search
.. _RQL: tut_rql