Bug 11246: remove reference to fields 780 and 785 in UNIMARC XSLT files for Bootstrap OPAC

Another fix, 10465, removed fields 780 and 785 from a unimarc xslt file.
This cleanup is needed for bootstrap too

To test : in a UNIMARC Koha, with Bootstrap theme OPAC
1. Be sure that OPACXSLTDetailsDisplay , OPACXSLTResultsDisplay sysprefs
   are set to "default"
2. Apply the patch
3. Search some records in OPAC : the list view and the detail view
   should be exacty the same as before you apply the patch.

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Changes are consistent with changes done earlier on the prog theme.
Checked that the detail pages and results still display correctly
for UNIMARC.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
(cherry picked from commit 684143a529cb556236f46d1d2a8ef05908c0b2f9)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
Bug 11572: ensure that running Z39.50 search from staff search results detects ISBN

In Koha 3.8, if a standard catalog search was performed and the user
clicked the Z39.50 search button, the search string would automatically
be placed in the isbn field for the Z39.50 search form.
Changes to the code have since broken this functionality.

Test Plan:
1) From mainpage.pl, use "Search the catalog" to search for the string
   "9781570672835"
2) Click the Z39.50 Search button
3) Note the string is placed in the title field
4) Apply this patch
5) Repeat steps 1-2
6) Note the string is placed in the isbn field

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Tested old and new ISBN with and without hyphens.
Also tested some other keyword searches.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>

Note that the behavior will be a bit odd if you do a 'replace via
Z39.50' from a bib record whose title happens to be an ISBN, but
this scenario seems unlikely enough to ignore.

(cherry picked from commit 7f6f3b924e5bc9343bb475a1add714923a025913)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>