Add logic to identify Case Query Advanced page

[ERosendo]

The current implementation of the extension is uploading CaseQueryAdvanced pages using the upload_type created for CaseQuery pages ( UPLOAD_TYPE=12 ), so Juriscraper is not able to parse( This issue is described in Juriscraper #598).

Here's a screenshot of this page from the district and bankruptcy court:

District Court	bankruptcy court

The extension should use the new upload_type described in freelawproject/juriscraper#598 (comment) so we can avoid the Juriscraper error.

[mlissner]

If we bother with district court (which wasn't a problem before, I think?) then we should do it as a separate upload type than appellate (as we do with all the other upload types).