v1.3 - Added es.ES translation files.

git-svn-id: https://plugins.svn.wordpress.org/jquery-responsive-select-menu/trunk@938681 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated readme.txt for v1.3 changelog.

git-svn-id: https://plugins.svn.wordpress.org/jquery-responsive-select-menu/trunk@938683 b8457f37-d9ea-0310-8a92-e5e31aec5664