Clean out the DB before and after each test.
Clean out the DB before and after each test.

IsaacChapman/xkcd-Open-Source,IsaacChapman/xkcd-Open-Source,iOSTestApps/xkcd-Open-Source,Suninus/xkcd-Open-Source,Suninus/xkcd-Open-Source,IsaacChapman/xkcd-Open-Source,mamaral/xkcd-Open-Source,mamaral/xkcd-Open-Source,iOSTestApps/xkcd-Open-Source,mamaral/xkcd-Open-Source