Replaced src/js/lib with external module jsTimezoneDetect

Author: fblundun

package.json

@@ -24,7 +24,6 @@
       "helpers": "./src/js/lib/helpers.js",
       "cookie": "./src/js/lib/cookie.js",
       "detectors": "./src/js/lib/detectors.js",
-      "jstz": "./src/js/lib/jstz.js",
       "payload": "./src/js/payload.js",
       "tracker": "./src/js/tracker.js",
       "queue": "./src/js/queue.js",

src/js/lib/detectors.js

@@ -37,9 +37,9 @@
 	var identifiers = require('identifiers');
 	var helpers = require('helpers');
 	var murmurhash3_32_gc = require('murmurhash').v3;
-	var tz = require('jstz').determine();
+	var tz = require('jstimezonedetect').jstz.determine();
 
-	var object = typeof module.exports != 'undefined' ? module.exports : this; // For eventual node.js environment support
+	var object = typeof module.exports !== 'undefined' ? module.exports : this; // For eventual node.js environment support
 
 	var 
 		windowAlias = window,