Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

For all european contries using the euro currency, add an UTF-8 definition with the proper Euro symbol

MFC after: 1 week

es_ES monetdef changed from spanish Ptas. to Euro without
switching to cents

PR: 67549
Submitted by: Jose M Rodriguez <freebsd@wanadoo.es>

Switch national currencies to Euro

Add es_ES.