Bug 16343: 7XX XSLT subfields displaying out of order

Bug 16343: 7XX XSLT subfields displaying out of order

This patch respect previous css classes
.authordates and .relatorcode but also include .titleportion

.authordates {display: none;}
.titleportion {display: none;}
.relatorcode {display: none;}

To test:
- Stage the two record attached with titles:
  - Surface & coatings technology.
  - Women crime writers.
- Reindex zebra (necessary to Opac and Itranet results)
- Leave empty the OPACUserCSS and IntranetUserCSS sysprefs
- Go to the new records in OPAC and Intranet detail page
- See the wrong display of dates
- Apply patch and refresh the page
- Test in OPACUserCSS and IntranetUserCSS the css stated before
- Play deleting or adding the classes
- Test with multiple records with 700 (with and without dates, etc;
  710 and 711)

NOTE: dates in 710 and 711 can be hidden with .titleportion class;
dates in this kind of heading go with another data for example:
Catholic Church. Plenary Council of Baltimore (2nd : 1866)
Patch rebased some typos fixed in comments

Signed-off-by: Dani Elder <danielle@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 0073a0c3f88276f6f5fac7b63ef6254cb8770e6b)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>