function _(str) {
	return plupload.translate(str) || str;
}
Dispatched when error of some kind is detected.

@event error
@param {plupload.Uploader} uploader Uploader instance sending the event.
@param {String} error Error message.
@param {plupload.File} file File that was uploaded.
	@param {Enum} status Status constant matching the plupload states QUEUED, UPLOADING, FAILED, DONE.