Changed currency format creation.

Currency format must be take from Bika Setup, it's not a translation.
Add line a space.
i18n updates

the update_translations script works.

fix #635
i18n update: Fix es/*po
Fix #1287 Currency in price lists and invoices
Merge branch 'issue/1287' into release/3.1
Remove i18n's label_blank strings
Fix #1298 List Paging - Rows skipped when paging
Fix #1273 Error on AR crate when default container is selected
Update i18n strings
Fix #65 List sorting for secondary pages

Issue from health but related with lims #105
Fix #115 Client Navigation Bar. Not present with Import Tab.
Avoid empty sort_on param on GET requests
Removing whitespaces
Merge branch 'issue/115h' into release/3.1
Fix multipage bika_listing views with filters

Fixes #949
Fix error showing priority in worksheet analyses

CAREFUL of duplicates.
Fix error displaying AR with missing contact
Fix translation when there is a workflow error.
fix sample transition JS checks.  i4n again.