message: Make OnSystemRequest.url param not array
  According requirements OnSystemRequest.url should not be an array
  Related to
diff: <param name="requestType" type="RequestType" mandatory="true">
  <description>The type of system request.</description>
  </param>
  - <param name="url" type="String" maxlength="1000" minsize="1" maxsize="100" array="true" mandatory="false">
  + <param name="url" type="String" maxlength="1000" mandatory="false">
  <description>
  Optional URL for HTTP requests.
  If blank, the binary data shall be forwarded to the app.
  