es_ES: Update spanish translations

PatchSet 2-3:  Restore AOSP header

PatchSet   4:  Replace double quotes to angle quotes
               (http://www.rae.es guidelines)

PatchSet   5:  Navigation Quick launch translations

PatchSet   6:  Volume tile

PatchSet   7:  Revert to AOSP strings, except fixed translations approved

Change-Id: I59a065e44e6a217e374f44be6e385133406a9606
Merge "es_ES: Update spanish translations" into cm-10.1