Changes the text of the subhead in this field template from "Thumbnail
Details" to "Attachment Details", which is more consistent with the
surrounding text. Also wraps this field and the "Edit Attachment" link
in gettext calls, so that they can be translated.
Changes the text of the subhead in this field template from "Thumbnail Details" to "Attachment Details", which is more consistent with the surrounding text. Also wraps this field and the "Edit Attachment" link in gettext calls, so that they can be translated.
Fixes #716.