Avoid duplicate title if bibsys returns the same title for the series as for the issue

-also testing doc.series.length!=0 instead of doc.series != '' since we
found that doc.series returned from the Ask2 API may be an empty array
instead of an empty string for series objects
-fixed bug where we got no hits searching for e-journals and
e-conferences with avdeling UREAL (removed UREAL-call from url to ask2
because e-resources are centralized)