ManagedConcourseServerTest should use latest code

[jtnelson]

In the starting method of the TestWatcher, change the impl to this

server = ManagedConcourseServer.manageNewServer(new File(ConcourseCodebase.cloneFromGithub().buildInstaller()));

NOTE: I tried this already but it seems like there are some issues with the server stopping. Need to investigate.

[mtbar131]

Hi,

I am new to concourse and I would like to start contributing to concourse.

I have tried the above code change and I did not get any exceptions. Can you please provide little more details on this so that I can start working on this.

Also I am beginner in open source contributions so any specific guidance for a beginner will be very helpful.