Added missing ca, el, and uk locales to the internal locale map. Added security fallback in tmpl_nice_number() to use the default locale in case a client locale is not found in this internal map.
Added missing ca, el, and uk locales to the internal locale map.
Added security fallback in tmpl_nice_number() to use the default
locale in case a client locale is not found in this internal map.

inveniosoftware/invenio,tiborsimko/invenio,inveniosoftware/invenio,tiborsimko/invenio