Bump Dojo from 1.16.5 to 1.17.3.

This should help with some of the security findings.

lib/dojo/json5.js

@@ -0,0 +1,8 @@
+/*
+	Copyright (c) 2004-2016, The JS Foundation All Rights Reserved.
+	Available via Academic Free License >= 2.1 OR the modified BSD license.
+	see: http://dojotoolkit.org/license for details
+*/
+
+//>>built
+define("dojo/json5",["./json5/parse"],function(_1){return {parse:_1};});