This would allow a user to set up and run servers, with an open prompt for killing
them. Likewise a user could open a different terminal session and run tests only.

How-to:
* At a terminal/ssh session, start bok-choy servers with
    `paver test_bokchoy --serversonly`
    (or, if you've already run collectstatic on your system:
    `paver test_bokchoy --serversonly --fasttest`)
* When the above is running, you can now open a separate terminal/ssh session
and run:
    `paver test_bokchoy -t my_tests --testsonly`

Keep in mind, the 'testsonly' flag does no setup. There is some minimal teardown; however,
such as clearing mongo and flushing the lms database. (Some tests have non-unique identifiers
and could not be run more than once.)