Clean up install of JJB and add instrumentation

Change-Id: I73fcfe0335a7d95beef1570919929e05226adfa6
Issue-ID: INT-146
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
diff --git a/bootstrap/jenkins/vagrant/Vagrantfile b/bootstrap/jenkins/vagrant/Vagrantfile
index 02b3ec1..7dcb48e 100644
--- a/bootstrap/jenkins/vagrant/Vagrantfile
+++ b/bootstrap/jenkins/vagrant/Vagrantfile
@@ -49,6 +49,7 @@
   #
   #   # Customize the amount of memory on the VM:
     vb.memory = "8192"
+    vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
   end
   #
   # View the documentation for the provider you are using for more