fixed bug when tunnel tokens not defined in config

lib/tunnel-client-manager.js

@@ -173,6 +173,7 @@ module.exports.create = function (deps, config) {
     return activeTunnels[data.tunnelUrl].clear(data.jwt);
   }
 
+  if (config.tunnel) {
     var confTokens = config.tunnel;
     if (typeof confTokens === 'string') {
       confTokens = confTokens.split(',');
@@ -185,6 +186,8 @@ module.exports.create = function (deps, config) {
         addToken({ jwt: jwt, owner: 'config' });
       }
     });
+  }
+
 
   storage.all().then(function (stored) {
     stored.forEach(function (result) {