LP#1522538: Improper detection of jtitle search type

LP#1522538: Improper detection of jtitle search type

Before this change, the system would only check the first qtype URL parameter
to see if it needed to apply the journal title "bib_level(s)" filter.  Instead
it should check each qtype in turn while it turns an advanced search into a
simple search string.  Here the code is moved into place to accomplish that.

To test, load all test datasets into a fresh database.  Perform an advanced
search on journal title for "proceedings" (no quotes) using the second search
input row.  Before this commit, two records are retrieved.  After, only one
is retrieved.

Signed-off-by: Mike Rylander <mrylander@gmail.com>