tests (any many other ones) we are not 'booting' umbraco with the Boot managers so the CacheRefreshers are not wired up to listen to events to clear
the cache. This puts us another step closer to having a proper global cache solution that will work for everything. At least now, all of the legacy
code is using the ApplicationCache which we can now control from a central location. Changed NiceUrlsProviderWithDomainsTests to only require a new db
schema per fixture.
