SAK-25417 - Update es_ES translation up to 100%. 

Missing "es_ES" translation files

git-svn-id: https://source.sakaiproject.org/svn/sam/trunk@132114 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-25431 - Removed default "es" translation (es_ES will be the officially maintained translation)

git-svn-id: https://source.sakaiproject.org/svn/sam/trunk@132117 66ffb92e-73f9-0310-93c1-f5514f145a0a