Themes: Move the escaping of content from JS back to PHP. This allows us to take advantage of the display() WP_Theme method to translate the text properly, and to strip out any HTML tags we don't wish to display. Fixes #26100. See #25948


git-svn-id: https://develop.svn.wordpress.org/trunk@26316 602fd350-edb4-49c9-b593-d223f7449a82