Allow JSLint-style code checks to be ignored on a specific line or block of code

// eslint-disable-next-line no-use-before-define
var thing = new Thing();

var thing = new Thing(); // eslint-disable-line no-use-before-define

/* jshint ignore:start*/
var thing = new Thing();
/* jshint ignore:end */

var thing = new Thing(); // jshint ignore:line