fix(config): fix fileconfig

Author: gergelyke

lib/utils/configReader.js

@@ -83,7 +83,7 @@ ConfigReader.prototype._readConfigFile = function (file) {
 ConfigReader.prototype._getFileConfig = function (file) {
   if (file) {
     try {
-      fs.statSync(file)
+      fs.statSync(path.resolve(file + '.js'))
     } catch (ex) {
       debug('Configuration file not found')
       return { }