-remusr
template: ster?clnt=<name|pass>&com=remusr[&<usr_1>=<str_1>&<usr_2>=...]
          Order of query params is not important. The user
          query parameters are optional.
descript: removes all records with stereotypes matching the pairs user-stereotype
example : ster?clnt=name|pass&com=remusr&john=experts&george=visitor&george=english
returns : 200 OK, 401 (fail, request error), 501 (fail, server error)
200 OK  : in this case the response body is as follows
          <?xml version="1.0"?>
          <?xml-stylesheet type="text/xsl" href="/resp_xsl/rows.xsl"?>
          <result>
          <row><num_of_rows>number of relevant rows</num_of_rows></row>
          </result>
comments: the reference to the xsl file allows to view results
          in a web browser. In case the response body is handled
          directly by an application and not by a browser, this
          reference to xsl can be ignored.