es_ES: Update spanish translations

PatchSet 3-4:  Restore all AOSP strings

PatchSet 5-6:  Replace double quotes to angle quotes

PatchSet 7:    Volume tile

PatchSet 8:    Revert to AOSP strings, except fixed translations approved

Change-Id: I684c7312c74ecece5c05877c1494195f9de4312b
Merge "es_ES: Update spanish translations" into cm-10.1