Bug 12250: Update descriptions for languages, scripts and regions

Bug 12250: Update descriptions for languages, scripts and regions

This patch adds/updates languages, scripts and regions to
reflect what we currently have on translation server.

Languages, scripts and regions are ordered by respective code

To test:
1. Apply the patch
2. run updatedatabase.pl, must run without errors
3. Go to advanced search (opac/staff), more options, and check
language pulldown (verify you have an empty AdvancedSearchLanguages
syspref)
4. Remove contents from language_descriptions, language_rfc4646_to_iso639,
language_script_bidi, language_script_mappin and language_subtag_registry
5. Load installer/data/mysql/mandatory/subtag_registry.sql,
must load without errors
6. Repeat 3

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Tested the SQL, no problems found.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>