function LintWarning(id, message, elements) {
        this.id = id;
        this.url = WIKI_URL + id;
        this.message = message;
        this.elements = elements || cheerio('');
    }
@param {integer} id Unique string ID for this type of lint warning. Of the form "W###" (e.g. "W123").
@param {string} message Human-readable string describing the warning
@param {jQuery} elements jQuery or Cheerio collection of referenced DOM elements pointing to all problem locations in the document
@class