Support passing full query strings in the configuration file, by leaving the field empty.

Signed-off-by: Robin H. Johnson <rjohnson@sitka.bclibraries.ca>
Clean up a PHP warning about $$Original.

Signed-off-by: Robin H. Johnson <rjohnson@sitka.bclibraries.ca>
Drop CURL timeout.

Signed-off-by: Robin H. Johnson <rjohnson@sitka.bclibraries.ca>
Include an example for a full query string.

Signed-off-by: Robin H. Johnson <rjohnson@sitka.bclibraries.ca>