More relationship unit tests

refs #89
fixing ServerTest.serverLaunchTerminate()

adding a little more in the process and modifying the wait times to cut
down runtime
relationship tests done for existing unit tests

All existing unit tests now test to make sure pulling relationships
won't throw an exception... this doesn't mean you won't get a null value
due to how the API behaves, but... it all works without complaining.
Closes #89