clarify earlier change to load project config file

Author: sanfilip

lib/client.js

@@ -2,8 +2,9 @@
 
 var configInfo = require('./config');
 var request = require('./request');
-var projectConfig = require('./projectConfig');
 
+// for credential caching
+var projectConfig = require('./projectConfig');
 projectConfig.getProject();
 
 var processEnv = (typeof process !== 'undefined' && process.env) || {};