Merge pull request #179 from crumbjp/add_wait_setup_user_server

Add "wait" field to .zuul.yml to wait for starting user_server

lib/user-server.js

@@ -10,13 +10,15 @@ module.exports = function(server, callback) {
 
     var cmd;
     var cwd;
+    var wait = 0;
     if (server !== null && server.cmd) {
         // expect the following format in .zuul.yml
         // server:
         //   cmd: ./test/support/server.js
         //   cwd: ./anotherapp
         cmd = server.cmd;
         cwd = server.cwd;
+        wait = server.wait;
     }
     else {
         // expect the following format in .zuul.yml
@@ -59,7 +61,9 @@ module.exports = function(server, callback) {
 
         process.on('exit', exit);
 
-        return callback({ port: port, process: ps });
+        return setTimeout(function(){
+            callback({ port: port, process: ps });
+        }, wait);
     });
 };