Fix moment-timezone export/import

moment-timezone/moment-timezone-tests.ts

@@ -1,5 +1,7 @@
 /// <reference path="moment-timezone.d.ts" />
 
+import moment = require('moment-timezone');
+
 var june = moment("2014-06-01T12:00:00Z");
 june.tz('America/Los_Angeles').format('ha z');
 

moment-timezone/moment-timezone.d.ts

@@ -50,5 +50,7 @@ interface MomentStatic {
 }
 
 declare module 'moment-timezone' {
+    var _tmp: MomentStatic;
 
+    export = _tmp;
 }