THRIFT-5163 adds Q to exports for browserify
Client: NodeJS
Patch: Márton Csordás

This closes #2061
diff --git a/lib/nodejs/lib/thrift/browser.js b/lib/nodejs/lib/thrift/browser.js
index 82e5469..ba1ea8c 100644
--- a/lib/nodejs/lib/thrift/browser.js
+++ b/lib/nodejs/lib/thrift/browser.js
@@ -39,3 +39,4 @@
 exports.TCompactProtocol = require('./compact_protocol');
 
 exports.Int64 = require('node-int64');
+exports.Q = require('q');