SAK-20720 - Update Spanish translation files.

Resolved problem with UTF-8 encoding.


git-svn-id: https://source.sakaiproject.org/svn/portal/trunk@126683 66ffb92e-73f9-0310-93c1-f5514f145a0a
Merge from trunk.

git-svn-id: https://source.sakaiproject.org/svn/portal/branches/SAK-23349@126687 66ffb92e-73f9-0310-93c1-f5514f145a0a