Bug 7537 - Implement TraceCompleteSubfields, TraceSubjectSubdivisions and UseICU...

Bug 7537 - Implement TraceCompleteSubfields, TraceSubjectSubdivisions and UseICU for NORMARC XSLT

IMPORTANT! This patch relies on the patch for Bug 7092, which is now pushed to
master.

As the title says, this patch implements TraceCompleteSubfields,
TraceSubjectSubdivisions and UseICU for NORMARC XSLT, both for the OPAC
and the Intranet. This affects how clickable subject-links are constructed.

To make this work the indexing of MARC fields in the 600 range is changed
to include "Subject:p" in several new places.

To test:

Find a record with a "complex" subject, like "Internet -- Law and legislation".
MARC21 and NORMARC are very similar in how they handle subjects, so testing
on a MARC21 database should be OK. (Changes in indexing reflect changes already
made to the MARC21 indexing.)

Make sure you have these syspref settings:
- marcflavour = NORMARC
- XSLTDetailsDisplay = using XSLT stylesheets
- OPACXSLTDetailsDisplay = using XSLT stylesheets

(Ideally, testing should be done on a real NORMARC setup, but since the changes
to indexing only reflect how it's already done in MARC21, I think testing
on a MARC21 installation with marcflavour = NORMARC should be OK.)

Now try the different combinations of TraceCompleteSubfields,
TraceSubjectSubdivisions and UseICU, and check the format of the
clickable links, both in the OPAC and staff client. Here's what you should
be seeing:

1.
TraceCompleteSubfields   = Don't force
TraceSubjectSubdivisions = Don't include
UseICU = Not using
  opac-search.pl?q=su:"Internet"
UseICU = Using
  opac-search.pl?q=su:{Internet}

2.
TraceCompleteSubfields   = Force
TraceSubjectSubdivisions = Don't include
UseICU = Not using
  opac-search.pl?q=su,complete-subfield:"Internet"
UseICU = Using
  opac-search.pl?q=su,complete-subfield:{Internet}

3.
TraceCompleteSubfields   = Don't force
TraceSubjectSubdivisions = Include
UseICU = Not using
  opac-search.pl?q=(su:"Internet") AND (su:"Law and legislation.")
UseICU = Using
  opac-search.pl?q=(su:{Internet}) AND (su:{Law and legislation.})

4.
TraceCompleteSubfields   = Force
TraceSubjectSubdivisions = Include
UseICU = Not using
  opac-search.pl?q=(su,complete-subfield:"Internet") AND (su,complete-subfield:"Law and legislation.")
UseICU = Using
  opac-search.pl?q=(su,complete-subfield:{Internet}) AND (su,complete-subfield:{Law and legislation.})

UPDATE 2012-03-23
- Change the syspref TracingQuotes to UseICU, see bug 7092
- Change boolean operator from "and" to "AND", see bug 7695

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Note: UseControlnumber must be turned off.

1) Works.
2) Works.
3) Works.
4) Works.

Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>